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NanaWallNestled in the lush landscape, a modern reinterpretation of a once-fallen barn now features a charming guest cottage with stylish details and contemporary amenities. Situated along a narrow lot in Germantown, New York, the cottage completes a cluster of existing buildings, forming an intimate courtyard on one side. Steel effect folding patio doors fully open the living areas to the expansive fields and the Catskill Mountains beyond.
The homeowners, a young family with parents living abroad, envisioned a cozy yet modern ADU for extended stays. Designed by Lauren Cawse, AIA, architect and partner at The Art of Building, the year-round retreat draws inspiration from traditional local barns while embracing a seamless indoor-outdoor connection.
Captivating Guest Cottage Design Enhances the Senses with Steel Effect Folding Patio Doors
The modern ADU design started with the site itself. Positioned between residential and commercial neighbors, the elongated property required a careful balance of privacy and openness. Architect Lauren Cawse approached the layout by redefining the existing house and garage as the east and west sides of an outdoor room, with the new cottage forming its southern boundary. This arrangement created a clear courtyard near the main residence while directing the 800-square-foot guest house toward the open meadow and the distant Catskill Mountains.
“The unique character of the site and its history inspired the architectural direction,” says Cawse. “The intent was to create a secondary structure in the compound in clear contrast to the modern farmhouse style of the house and garage.”
A Barn-Inspired Exterior Adds Visual Flair
The exterior envelope evokes a traditional barn with a simple gable shape, weathered wood siding, cedar shingles, and a foundation veneer made of local fieldstone. A large sliding barn door adds a complementary feature to the courtyard-facing side, creating a dynamic opening that maintains uninterrupted views through the cottage to the meadow beyond.
Steel effect folding patio doors surrounding the structure add a modern touch of transparency, and simulated divided lites allow the contemporary glass wall systems to harmonize with the traditional elements of the modern ADU design.
“The goal was to fully open the living areas to the outdoors, framing views to the meadows and mountains,” says Cawse. “The positioning of the NanaWall systems frames the views and, when open, dissolves the boundary between inside and out.”
Interior Design That Mirrors Nature’s Tranquility
Inside, the design program features a simple layout with one bedroom, a full bath, a kitchenette, and a living area with a wood-burning stove. The interior, a collaboration between The Art of Building and the homeowners, is defined by an understated palette and tactile materials that reflect the natural setting. Color is introduced through the framed glass views on all sides of the structure. Reclaimed timber collar ties span the ceiling overhead, while stone surfaces and naturally patinated metal accents add quiet texture throughout.
Custom hand-painted Delft tiles along the kitchen backsplash add personal detail, and terra cotta flooring in the bathroom brings warmth and old-world charm. Soaring ceilings and abundant daylight create a peaceful play of light and shadow, shifting subtly with the seasons and emphasizing the cottage’s connection to the natural landscape outside.
Sleek Steel Effect Folding Patio Doors Elevate the Modern ADU Design Aesthetic
Three customized steel effect folding patio doors define the living space, each aligned to respond to a different edge of the site. The largest, spanning nearly 20 feet wide and just under eight feet tall, opens directly onto the stone patio, allowing the main gathering area to extend fully into the landscape. Along the side of the living room, a smaller 10-foot-wide system introduces more light and ventilation, nearly creating an open corner condition if not for the structural post that supports the façade and roofline.
At the rear, a fourth ten-foot-wide system features a French door swing panel configuration that opens toward the courtyard, strengthening the design connection to the main residence. All steel effect folding patio doors were specified with a low-maintenance, water-rated Performance Sill to safeguard against inclement weather while providing a seamless, barrier-free transition to the outdoor patio.
Unique Customizations for Visual Appeal and a Steel Effect
Each folding patio door system is configured to open outward, maximizing usable floor space in the compact interior and allowing furniture placement to remain uninterrupted. By stacking outward, the steel effect folding patio doors, specified in a SE Classic Bronze powder coat, ensure every inch of the cottage is optimized. Simulated divided lites create a consistent rhythm across windows and doors, maintaining alignment with the traditional barn-inspired exterior.
In the bedroom, a three-panel, 10-foot-wide system mirrors these customizations, matching the steel effect divided-lite pattern and outward-opening configuration, extending the indoor-outdoor connection while preserving visual continuity throughout the ADU.
“The divided lites were crucial to the architectural vision, and while budget prohibited a steel and glass system, NanaWall Systems’ thin frames provide the open and airy feeling we hoped to attain,” says Cawse. “Simulated divided lites transition the thoroughly modern element of the glass walls to remain in harmony with the otherwise traditional palette.”
Matching Windows and Doors: Create a Cohesive Design Program
Alongside the larger openings in the living areas and bedroom, a smaller 3-foot-tall NanaWall tilt turn window was added to the bathroom. This window-sized NanaWall system perfectly matches the divided lite panels and sleek frames of the steel effect folding patio doors, creating a cohesive modern ADU design throughout. The compact opening provides ventilation and natural light, enhancing the spa-like atmosphere along with natural stone flooring. The matching glass lines and sleek profiles of the NanaWall Generation 4 comprehensive product line further unify visual consistency, allowing each system to fit into the architectural style seamlessly.
“This project had three bifold glass walls, a pair of double French doors with sidelites, and a single tilt turn window,” says architect Lauren Cawse. “Being able to work with a single manufacturer provided aesthetic cohesiveness and simplified coordination.”
Sustainability Where It Matters Most
New York weather can vary from hot 85-degree summers to cold 26-degree winters. Creating an efficient living space was a primary goal. To achieve this, the design included Timber HP-insulated walls and floors with a heat pump system for effective heating and cooling. Additionally, the steel effect folding patio doors and windows were specified with double-glazed panels to ensure a tight building envelope.
Indoor-Outdoor Living Spaces for Relaxing and Entertaining
In-house landscape designer Liz Pulver worked closely with the team to conceive open-air spaces that enhanced the connection between inside and outside. To the south end of the lot, the landscape transitions into an “enhanced meadow,” allowing the cottage to feel embedded within the surrounding fields rather than set apart from them. A circular pool was designed to mimic a natural pond with a modest footprint. Around it, a minimalist fence and sunken stone ha-ha wall offer discreet safety for young children.
Limited space due to existing infrastructure and zoning setbacks left only a small footprint for the swimming pool, prompting the designer to propose a circular form that maximized the usable swimming area. “We felt that the perfect way to integrate a pool into the property and to honor the landscape would be to treat the pool as a piece of art itself,” says Pulver. “The result is a beautiful round pool that serves as both a functional retreat and a sculptural moment.”
Final Thoughts: A Barn-Inspired Design for Contemporary Living
This modern ADU design skillfully combines modern features with the enduring charm of traditional barns. The outcome is a welcoming living space that stands out amid a stunning landscape. Natural materials that mimic the beauty of the outdoors, expansive steel effect folding patio doors that fill the space with fresh air and natural light, and a restrained interior design work together to create an inviting retreat for everyday living, throughout the seasons.
“When entering the site, the cottage feels as though it was always there,” says Cawse. “It achieves its two opposing goals by creating a feeling of intimacy and enclosure near the house while also functioning as a threshold to the expansive fields and views beyond.”
Explore how NanaWall folding patio doors elevate other ADU spaces in our inspiring project photo gallery!
Frequently Asked Questions (FAQs)
What is Slimline Steel Effect?
Steel Effect is a folding patio door design option that replicates the appearance of traditional steel-framed glass doors. It combines the look of steel with the performance benefits of aluminum, including energy efficiency, low maintenance, greater design flexibility, and lower cost.
How does a NanaWall Steel Effect aluminum system compare to traditional steel-framed glass doors?
NanaWall Slimline Steel Effect folding patio doors replicate the narrow frames of traditional steel doors with improved weather and thermal performance and easier operation. They are lighter, more corrosion-resistant, and feature a thermally broken design for better energy efficiency and lower long-term maintenance.
What are the benefits of Steel Effect folding glass walls?
Steel Effect folding glass walls deliver the narrow sightlines and grid patterns of traditional steel, combined with the performance and low maintenance of aluminum. The slimline steel effect option offers all the benefits of our Generation 4 product line, including the FourFold / SixFold floating panel set option and smooth operation with Gothic arch stainless steel rollers on a stainless steel track.
Can Slimline Steel Effect glass walls be customized?
Yes, these systems offer a high level of customization to suit different architectural styles, including simulated divided lites specified in various patterns, popular SE colors for a true steel effect look, and a contemporary glass stop option for a refined look. Contact your local NanaWall representative for additional options here.
How energy-efficient and weather-resistant are Slimline Steel Effect folding patio doors?
Steel effect folding systems are engineered for strong thermal and weather performance. Thermally broken frames and high-performance glazing help improve energy efficiency. Each NanaWall system has been independently tested for air, water, structural integrity, and forced entry with excellent results.
Klopf ArchitectureNestled in the hills of Orinda, California, this 1951 residence is one of only seven extant homes, now known as “The Magnificent Seven”, designed by architect Olof Dahlstrand, a protégé of Frank Lloyd Wright. With its low-slung rooflines, natural materials, and deep integration with the sloping landscape, the home is a pristine example of mid-century modern design inspired by Wright’s organic principles. Over the years, prior homeowners have emphasized preservation, ensuring that the house remained relatively untouched. Each owner has respected the original architecture and stayed true to Dahlstrand’s intent. When a family of five—two college-aged sons and a middle school-aged daughter—acquired the property, they were captivated by its history, legacy of care, and architectural significance. While they appreciated Dahlstrand’s original vision, they also recognized the need to adapt the home for contemporary living while preserving its design integrity.
The remodel was conceived as a thoughtful response to the past—an effort to bring the house into the 21st century without compromising its soul. The primary mandate was to maintain architectural continuity while improving the functionality, comfort, and livability for a modern family. The design team—architects and contractor alike—worked with a shared reverence for the original architecture, allowing that mindset to guide even the most technical or pragmatic decisions.
A key objective was to increase natural light in the kitchen—a departure from Wrightian principles of enclosed, intimate cooking spaces—while maintaining the home’s architectural language. The kitchen was reconfigured to foster a stronger connection to adjacent living spaces while retaining the underlying concept of spatial separation. One of the most transformative architectural changes was the removal of a ridge beam that was originally planned to remain visible through the kitchen. During construction, the team collaborated on a better solution: a wide-flanged steel beam concealed within the roof envelope. This subtle move preserved the clean lines and ceiling continuity, a modern update carried out with utmost respect for the existing framework.
The home’s original powder room, previously accessible only through the kitchen, was relocated for better flow and privacy. A new powder room was carved out of former kitchen cabinetry—a narrow, interior space that could have felt dark and enclosed. To avoid this, the design extended the line of original transom windows into the new powder room and added a skylight above the vanity. The result is a bright and airy space that feels consistent with the rest of the home. Other updates included the installation of new solid-core interior doors with veneers carefully matched to the original mahogany, enhancing the continuity of the interiors. Even smaller decisions, such as placing the door knobs at 42 inches high, mirrored the original proportions. Every choice reflected a shared belief between the architect, contractor, and client: that new work should serve the integrity of the old.
The home’s extensive interior redwood millwork and paneling was meticulously restored. Where new materials were introduced—such as the replacement redwood soffit paneling—the contractor took pains to find finish nails that matched the original, rather than using modern equivalents. This level of craftsmanship and collaboration defined the project. It extended even to the detailing of a blind door to the new powder room, which had to disappear into the existing redwood board-and-batten wall. It was a team effort: the owner found a suitable handle, the architects devised the custom in-swing mechanism, and the contractor executed it so the door aligned precisely with the battens. Throughout, the homeowners were deeply engaged in the design process. One, a meticulous design enthusiast, focused on aesthetic integrity and historic detail. The other brought a practical and function-driven perspective, ensuring that new fixtures and materials would be durable and require minimal maintenance.
While the home’s location posed no major site challenges, sustainability was a key concern. The team upgraded the roof insulation, installed solar panels with battery storage, and added ductless mini-split cooling systems. Lighting was another area where modern technology was woven into a historic framework: new square LED fixtures echo the original custom perimeter soffit lights, maintaining the design language while offering advanced performance.
A planned expansion of a bedroom into suite with a bathroom had to be shelved due to budget constraints and the high cost of below-grade foundation work. Still, the team focused their efforts on making the most of the existing footprint, resolving constraints through design ingenuity rather than adding square footage. This renovation represents a collaborative achievement in preserving and evolving a historically significant home. Every decision was shaped by a shared ethos among clients, architects, and contractor: to maintain the home’s architectural soul while updating it for contemporary life. The result is a timeless modernist residence that continues Olof Dahlstrand’s legacy, remaining grounded in nature, craftsmanship, and human-scale design.
Klopf Architecture Team: John Klopf, AIA, Klara Kevane, Fernanda Bernardes
Interior Architectural Design: Klopf Architecture
Structural Engineer: Daniel Bastiao
Contractor: Don Larwood, Larwood Construction
Photography: Mariko Reed
Year Completed: 2022
NanaWallNestled in the lush landscape, a modern reinterpretation of a once-fallen barn now features a charming guest cottage with stylish details and contemporary amenities. Situated along a narrow lot in Germantown, New York, the cottage completes a cluster of existing buildings, forming an intimate courtyard on one side. Steel effect folding patio doors fully open the living areas to the expansive fields and the Catskill Mountains beyond.
The homeowners, a young family with parents living abroad, envisioned a cozy yet modern ADU for extended stays. Designed by Lauren Cawse, AIA, architect and partner at The Art of Building, the year-round retreat draws inspiration from traditional local barns while embracing a seamless indoor-outdoor connection.
Captivating Guest Cottage Design Enhances the Senses with Steel Effect Folding Patio Doors
The modern ADU design started with the site itself. Positioned between residential and commercial neighbors, the elongated property required a careful balance of privacy and openness. Architect Lauren Cawse approached the layout by redefining the existing house and garage as the east and west sides of an outdoor room, with the new cottage forming its southern boundary. This arrangement created a clear courtyard near the main residence while directing the 800-square-foot guest house toward the open meadow and the distant Catskill Mountains.
“The unique character of the site and its history inspired the architectural direction,” says Cawse. “The intent was to create a secondary structure in the compound in clear contrast to the modern farmhouse style of the house and garage.”
A Barn-Inspired Exterior Adds Visual Flair
The exterior envelope evokes a traditional barn with a simple gable shape, weathered wood siding, cedar shingles, and a foundation veneer made of local fieldstone. A large sliding barn door adds a complementary feature to the courtyard-facing side, creating a dynamic opening that maintains uninterrupted views through the cottage to the meadow beyond.
Steel effect folding patio doors surrounding the structure add a modern touch of transparency, and simulated divided lites allow the contemporary glass wall systems to harmonize with the traditional elements of the modern ADU design.
“The goal was to fully open the living areas to the outdoors, framing views to the meadows and mountains,” says Cawse. “The positioning of the NanaWall systems frames the views and, when open, dissolves the boundary between inside and out.”
Interior Design That Mirrors Nature’s Tranquility
Inside, the design program features a simple layout with one bedroom, a full bath, a kitchenette, and a living area with a wood-burning stove. The interior, a collaboration between The Art of Building and the homeowners, is defined by an understated palette and tactile materials that reflect the natural setting. Color is introduced through the framed glass views on all sides of the structure. Reclaimed timber collar ties span the ceiling overhead, while stone surfaces and naturally patinated metal accents add quiet texture throughout.
Custom hand-painted Delft tiles along the kitchen backsplash add personal detail, and terra cotta flooring in the bathroom brings warmth and old-world charm. Soaring ceilings and abundant daylight create a peaceful play of light and shadow, shifting subtly with the seasons and emphasizing the cottage’s connection to the natural landscape outside.
Sleek Steel Effect Folding Patio Doors Elevate the Modern ADU Design Aesthetic
Three customized steel effect folding patio doors define the living space, each aligned to respond to a different edge of the site. The largest, spanning nearly 20 feet wide and just under eight feet tall, opens directly onto the stone patio, allowing the main gathering area to extend fully into the landscape. Along the side of the living room, a smaller 10-foot-wide system introduces more light and ventilation, nearly creating an open corner condition if not for the structural post that supports the façade and roofline.
At the rear, a fourth ten-foot-wide system features a French door swing panel configuration that opens toward the courtyard, strengthening the design connection to the main residence. All steel effect folding patio doors were specified with a low-maintenance, water-rated Performance Sill to safeguard against inclement weather while providing a seamless, barrier-free transition to the outdoor patio.
Unique Customizations for Visual Appeal and a Steel Effect
Each folding patio door system is configured to open outward, maximizing usable floor space in the compact interior and allowing furniture placement to remain uninterrupted. By stacking outward, the steel effect folding patio doors, specified in a SE Classic Bronze powder coat, ensure every inch of the cottage is optimized. Simulated divided lites create a consistent rhythm across windows and doors, maintaining alignment with the traditional barn-inspired exterior.
In the bedroom, a three-panel, 10-foot-wide system mirrors these customizations, matching the steel effect divided-lite pattern and outward-opening configuration, extending the indoor-outdoor connection while preserving visual continuity throughout the ADU.
“The divided lites were crucial to the architectural vision, and while budget prohibited a steel and glass system, NanaWall Systems’ thin frames provide the open and airy feeling we hoped to attain,” says Cawse. “Simulated divided lites transition the thoroughly modern element of the glass walls to remain in harmony with the otherwise traditional palette.”
Matching Windows and Doors: Create a Cohesive Design Program
Alongside the larger openings in the living areas and bedroom, a smaller 3-foot-tall NanaWall tilt turn window was added to the bathroom. This window-sized NanaWall system perfectly matches the divided lite panels and sleek frames of the steel effect folding patio doors, creating a cohesive modern ADU design throughout. The compact opening provides ventilation and natural light, enhancing the spa-like atmosphere along with natural stone flooring. The matching glass lines and sleek profiles of the NanaWall Generation 4 comprehensive product line further unify visual consistency, allowing each system to fit into the architectural style seamlessly.
“This project had three bifold glass walls, a pair of double French doors with sidelites, and a single tilt turn window,” says architect Lauren Cawse. “Being able to work with a single manufacturer provided aesthetic cohesiveness and simplified coordination.”
Sustainability Where It Matters Most
New York weather can vary from hot 85-degree summers to cold 26-degree winters. Creating an efficient living space was a primary goal. To achieve this, the design included Timber HP-insulated walls and floors with a heat pump system for effective heating and cooling. Additionally, the steel effect folding patio doors and windows were specified with double-glazed panels to ensure a tight building envelope.
Indoor-Outdoor Living Spaces for Relaxing and Entertaining
In-house landscape designer Liz Pulver worked closely with the team to conceive open-air spaces that enhanced the connection between inside and outside. To the south end of the lot, the landscape transitions into an “enhanced meadow,” allowing the cottage to feel embedded within the surrounding fields rather than set apart from them. A circular pool was designed to mimic a natural pond with a modest footprint. Around it, a minimalist fence and sunken stone ha-ha wall offer discreet safety for young children.
Limited space due to existing infrastructure and zoning setbacks left only a small footprint for the swimming pool, prompting the designer to propose a circular form that maximized the usable swimming area. “We felt that the perfect way to integrate a pool into the property and to honor the landscape would be to treat the pool as a piece of art itself,” says Pulver. “The result is a beautiful round pool that serves as both a functional retreat and a sculptural moment.”
Final Thoughts: A Barn-Inspired Design for Contemporary Living
This modern ADU design skillfully combines modern features with the enduring charm of traditional barns. The outcome is a welcoming living space that stands out amid a stunning landscape. Natural materials that mimic the beauty of the outdoors, expansive steel effect folding patio doors that fill the space with fresh air and natural light, and a restrained interior design work together to create an inviting retreat for everyday living, throughout the seasons.
“When entering the site, the cottage feels as though it was always there,” says Cawse. “It achieves its two opposing goals by creating a feeling of intimacy and enclosure near the house while also functioning as a threshold to the expansive fields and views beyond.”
Explore how NanaWall folding patio doors elevate other ADU spaces in our inspiring project photo gallery!
Frequently Asked Questions (FAQs)
What is Slimline Steel Effect?
Steel Effect is a folding patio door design option that replicates the appearance of traditional steel-framed glass doors. It combines the look of steel with the performance benefits of aluminum, including energy efficiency, low maintenance, greater design flexibility, and lower cost.
How does a NanaWall Steel Effect aluminum system compare to traditional steel-framed glass doors?
NanaWall Slimline Steel Effect folding patio doors replicate the narrow frames of traditional steel doors with improved weather and thermal performance and easier operation. They are lighter, more corrosion-resistant, and feature a thermally broken design for better energy efficiency and lower long-term maintenance.
What are the benefits of Steel Effect folding glass walls?
Steel Effect folding glass walls deliver the narrow sightlines and grid patterns of traditional steel, combined with the performance and low maintenance of aluminum. The slimline steel effect option offers all the benefits of our Generation 4 product line, including the FourFold / SixFold floating panel set option and smooth operation with Gothic arch stainless steel rollers on a stainless steel track.
Can Slimline Steel Effect glass walls be customized?
Yes, these systems offer a high level of customization to suit different architectural styles, including simulated divided lites specified in various patterns, popular SE colors for a true steel effect look, and a contemporary glass stop option for a refined look. Contact your local NanaWall representative for additional options here.
How energy-efficient and weather-resistant are Slimline Steel Effect folding patio doors?
Steel effect folding systems are engineered for strong thermal and weather performance. Thermally broken frames and high-performance glazing help improve energy efficiency. Each NanaWall system has been independently tested for air, water, structural integrity, and forced entry with excellent results.
Find the right local pro for your project
NanaWallNestled in the lush landscape, a modern reinterpretation of a once-fallen barn now features a charming guest cottage with stylish details and contemporary amenities. Situated along a narrow lot in Germantown, New York, the cottage completes a cluster of existing buildings, forming an intimate courtyard on one side. Steel effect folding patio doors fully open the living areas to the expansive fields and the Catskill Mountains beyond.
The homeowners, a young family with parents living abroad, envisioned a cozy yet modern ADU for extended stays. Designed by Lauren Cawse, AIA, architect and partner at The Art of Building, the year-round retreat draws inspiration from traditional local barns while embracing a seamless indoor-outdoor connection.
Captivating Guest Cottage Design Enhances the Senses with Steel Effect Folding Patio Doors
The modern ADU design started with the site itself. Positioned between residential and commercial neighbors, the elongated property required a careful balance of privacy and openness. Architect Lauren Cawse approached the layout by redefining the existing house and garage as the east and west sides of an outdoor room, with the new cottage forming its southern boundary. This arrangement created a clear courtyard near the main residence while directing the 800-square-foot guest house toward the open meadow and the distant Catskill Mountains.
“The unique character of the site and its history inspired the architectural direction,” says Cawse. “The intent was to create a secondary structure in the compound in clear contrast to the modern farmhouse style of the house and garage.”
A Barn-Inspired Exterior Adds Visual Flair
The exterior envelope evokes a traditional barn with a simple gable shape, weathered wood siding, cedar shingles, and a foundation veneer made of local fieldstone. A large sliding barn door adds a complementary feature to the courtyard-facing side, creating a dynamic opening that maintains uninterrupted views through the cottage to the meadow beyond.
Steel effect folding patio doors surrounding the structure add a modern touch of transparency, and simulated divided lites allow the contemporary glass wall systems to harmonize with the traditional elements of the modern ADU design.
“The goal was to fully open the living areas to the outdoors, framing views to the meadows and mountains,” says Cawse. “The positioning of the NanaWall systems frames the views and, when open, dissolves the boundary between inside and out.”
Interior Design That Mirrors Nature’s Tranquility
Inside, the design program features a simple layout with one bedroom, a full bath, a kitchenette, and a living area with a wood-burning stove. The interior, a collaboration between The Art of Building and the homeowners, is defined by an understated palette and tactile materials that reflect the natural setting. Color is introduced through the framed glass views on all sides of the structure. Reclaimed timber collar ties span the ceiling overhead, while stone surfaces and naturally patinated metal accents add quiet texture throughout.
Custom hand-painted Delft tiles along the kitchen backsplash add personal detail, and terra cotta flooring in the bathroom brings warmth and old-world charm. Soaring ceilings and abundant daylight create a peaceful play of light and shadow, shifting subtly with the seasons and emphasizing the cottage’s connection to the natural landscape outside.
Sleek Steel Effect Folding Patio Doors Elevate the Modern ADU Design Aesthetic
Three customized steel effect folding patio doors define the living space, each aligned to respond to a different edge of the site. The largest, spanning nearly 20 feet wide and just under eight feet tall, opens directly onto the stone patio, allowing the main gathering area to extend fully into the landscape. Along the side of the living room, a smaller 10-foot-wide system introduces more light and ventilation, nearly creating an open corner condition if not for the structural post that supports the façade and roofline.
At the rear, a fourth ten-foot-wide system features a French door swing panel configuration that opens toward the courtyard, strengthening the design connection to the main residence. All steel effect folding patio doors were specified with a low-maintenance, water-rated Performance Sill to safeguard against inclement weather while providing a seamless, barrier-free transition to the outdoor patio.
Unique Customizations for Visual Appeal and a Steel Effect
Each folding patio door system is configured to open outward, maximizing usable floor space in the compact interior and allowing furniture placement to remain uninterrupted. By stacking outward, the steel effect folding patio doors, specified in a SE Classic Bronze powder coat, ensure every inch of the cottage is optimized. Simulated divided lites create a consistent rhythm across windows and doors, maintaining alignment with the traditional barn-inspired exterior.
In the bedroom, a three-panel, 10-foot-wide system mirrors these customizations, matching the steel effect divided-lite pattern and outward-opening configuration, extending the indoor-outdoor connection while preserving visual continuity throughout the ADU.
“The divided lites were crucial to the architectural vision, and while budget prohibited a steel and glass system, NanaWall Systems’ thin frames provide the open and airy feeling we hoped to attain,” says Cawse. “Simulated divided lites transition the thoroughly modern element of the glass walls to remain in harmony with the otherwise traditional palette.”
Matching Windows and Doors: Create a Cohesive Design Program
Alongside the larger openings in the living areas and bedroom, a smaller 3-foot-tall NanaWall tilt turn window was added to the bathroom. This window-sized NanaWall system perfectly matches the divided lite panels and sleek frames of the steel effect folding patio doors, creating a cohesive modern ADU design throughout. The compact opening provides ventilation and natural light, enhancing the spa-like atmosphere along with natural stone flooring. The matching glass lines and sleek profiles of the NanaWall Generation 4 comprehensive product line further unify visual consistency, allowing each system to fit into the architectural style seamlessly.
“This project had three bifold glass walls, a pair of double French doors with sidelites, and a single tilt turn window,” says architect Lauren Cawse. “Being able to work with a single manufacturer provided aesthetic cohesiveness and simplified coordination.”
Sustainability Where It Matters Most
New York weather can vary from hot 85-degree summers to cold 26-degree winters. Creating an efficient living space was a primary goal. To achieve this, the design included Timber HP-insulated walls and floors with a heat pump system for effective heating and cooling. Additionally, the steel effect folding patio doors and windows were specified with double-glazed panels to ensure a tight building envelope.
Indoor-Outdoor Living Spaces for Relaxing and Entertaining
In-house landscape designer Liz Pulver worked closely with the team to conceive open-air spaces that enhanced the connection between inside and outside. To the south end of the lot, the landscape transitions into an “enhanced meadow,” allowing the cottage to feel embedded within the surrounding fields rather than set apart from them. A circular pool was designed to mimic a natural pond with a modest footprint. Around it, a minimalist fence and sunken stone ha-ha wall offer discreet safety for young children.
Limited space due to existing infrastructure and zoning setbacks left only a small footprint for the swimming pool, prompting the designer to propose a circular form that maximized the usable swimming area. “We felt that the perfect way to integrate a pool into the property and to honor the landscape would be to treat the pool as a piece of art itself,” says Pulver. “The result is a beautiful round pool that serves as both a functional retreat and a sculptural moment.”
Final Thoughts: A Barn-Inspired Design for Contemporary Living
This modern ADU design skillfully combines modern features with the enduring charm of traditional barns. The outcome is a welcoming living space that stands out amid a stunning landscape. Natural materials that mimic the beauty of the outdoors, expansive steel effect folding patio doors that fill the space with fresh air and natural light, and a restrained interior design work together to create an inviting retreat for everyday living, throughout the seasons.
“When entering the site, the cottage feels as though it was always there,” says Cawse. “It achieves its two opposing goals by creating a feeling of intimacy and enclosure near the house while also functioning as a threshold to the expansive fields and views beyond.”
Explore how NanaWall folding patio doors elevate other ADU spaces in our inspiring project photo gallery!
Frequently Asked Questions (FAQs)
What is Slimline Steel Effect?
Steel Effect is a folding patio door design option that replicates the appearance of traditional steel-framed glass doors. It combines the look of steel with the performance benefits of aluminum, including energy efficiency, low maintenance, greater design flexibility, and lower cost.
How does a NanaWall Steel Effect aluminum system compare to traditional steel-framed glass doors?
NanaWall Slimline Steel Effect folding patio doors replicate the narrow frames of traditional steel doors with improved weather and thermal performance and easier operation. They are lighter, more corrosion-resistant, and feature a thermally broken design for better energy efficiency and lower long-term maintenance.
What are the benefits of Steel Effect folding glass walls?
Steel Effect folding glass walls deliver the narrow sightlines and grid patterns of traditional steel, combined with the performance and low maintenance of aluminum. The slimline steel effect option offers all the benefits of our Generation 4 product line, including the FourFold / SixFold floating panel set option and smooth operation with Gothic arch stainless steel rollers on a stainless steel track.
Can Slimline Steel Effect glass walls be customized?
Yes, these systems offer a high level of customization to suit different architectural styles, including simulated divided lites specified in various patterns, popular SE colors for a true steel effect look, and a contemporary glass stop option for a refined look. Contact your local NanaWall representative for additional options here.
How energy-efficient and weather-resistant are Slimline Steel Effect folding patio doors?
Steel effect folding systems are engineered for strong thermal and weather performance. Thermally broken frames and high-performance glazing help improve energy efficiency. Each NanaWall system has been independently tested for air, water, structural integrity, and forced entry with excellent results.
NanaWallNestled in the lush landscape, a modern reinterpretation of a once-fallen barn now features a charming guest cottage with stylish details and contemporary amenities. Situated along a narrow lot in Germantown, New York, the cottage completes a cluster of existing buildings, forming an intimate courtyard on one side. Steel effect folding patio doors fully open the living areas to the expansive fields and the Catskill Mountains beyond.
The homeowners, a young family with parents living abroad, envisioned a cozy yet modern ADU for extended stays. Designed by Lauren Cawse, AIA, architect and partner at The Art of Building, the year-round retreat draws inspiration from traditional local barns while embracing a seamless indoor-outdoor connection.
Captivating Guest Cottage Design Enhances the Senses with Steel Effect Folding Patio Doors
The modern ADU design started with the site itself. Positioned between residential and commercial neighbors, the elongated property required a careful balance of privacy and openness. Architect Lauren Cawse approached the layout by redefining the existing house and garage as the east and west sides of an outdoor room, with the new cottage forming its southern boundary. This arrangement created a clear courtyard near the main residence while directing the 800-square-foot guest house toward the open meadow and the distant Catskill Mountains.
“The unique character of the site and its history inspired the architectural direction,” says Cawse. “The intent was to create a secondary structure in the compound in clear contrast to the modern farmhouse style of the house and garage.”
A Barn-Inspired Exterior Adds Visual Flair
The exterior envelope evokes a traditional barn with a simple gable shape, weathered wood siding, cedar shingles, and a foundation veneer made of local fieldstone. A large sliding barn door adds a complementary feature to the courtyard-facing side, creating a dynamic opening that maintains uninterrupted views through the cottage to the meadow beyond.
Steel effect folding patio doors surrounding the structure add a modern touch of transparency, and simulated divided lites allow the contemporary glass wall systems to harmonize with the traditional elements of the modern ADU design.
“The goal was to fully open the living areas to the outdoors, framing views to the meadows and mountains,” says Cawse. “The positioning of the NanaWall systems frames the views and, when open, dissolves the boundary between inside and out.”
Interior Design That Mirrors Nature’s Tranquility
Inside, the design program features a simple layout with one bedroom, a full bath, a kitchenette, and a living area with a wood-burning stove. The interior, a collaboration between The Art of Building and the homeowners, is defined by an understated palette and tactile materials that reflect the natural setting. Color is introduced through the framed glass views on all sides of the structure. Reclaimed timber collar ties span the ceiling overhead, while stone surfaces and naturally patinated metal accents add quiet texture throughout.
Custom hand-painted Delft tiles along the kitchen backsplash add personal detail, and terra cotta flooring in the bathroom brings warmth and old-world charm. Soaring ceilings and abundant daylight create a peaceful play of light and shadow, shifting subtly with the seasons and emphasizing the cottage’s connection to the natural landscape outside.
Sleek Steel Effect Folding Patio Doors Elevate the Modern ADU Design Aesthetic
Three customized steel effect folding patio doors define the living space, each aligned to respond to a different edge of the site. The largest, spanning nearly 20 feet wide and just under eight feet tall, opens directly onto the stone patio, allowing the main gathering area to extend fully into the landscape. Along the side of the living room, a smaller 10-foot-wide system introduces more light and ventilation, nearly creating an open corner condition if not for the structural post that supports the façade and roofline.
At the rear, a fourth ten-foot-wide system features a French door swing panel configuration that opens toward the courtyard, strengthening the design connection to the main residence. All steel effect folding patio doors were specified with a low-maintenance, water-rated Performance Sill to safeguard against inclement weather while providing a seamless, barrier-free transition to the outdoor patio.
Unique Customizations for Visual Appeal and a Steel Effect
Each folding patio door system is configured to open outward, maximizing usable floor space in the compact interior and allowing furniture placement to remain uninterrupted. By stacking outward, the steel effect folding patio doors, specified in a SE Classic Bronze powder coat, ensure every inch of the cottage is optimized. Simulated divided lites create a consistent rhythm across windows and doors, maintaining alignment with the traditional barn-inspired exterior.
In the bedroom, a three-panel, 10-foot-wide system mirrors these customizations, matching the steel effect divided-lite pattern and outward-opening configuration, extending the indoor-outdoor connection while preserving visual continuity throughout the ADU.
“The divided lites were crucial to the architectural vision, and while budget prohibited a steel and glass system, NanaWall Systems’ thin frames provide the open and airy feeling we hoped to attain,” says Cawse. “Simulated divided lites transition the thoroughly modern element of the glass walls to remain in harmony with the otherwise traditional palette.”
Matching Windows and Doors: Create a Cohesive Design Program
Alongside the larger openings in the living areas and bedroom, a smaller 3-foot-tall NanaWall tilt turn window was added to the bathroom. This window-sized NanaWall system perfectly matches the divided lite panels and sleek frames of the steel effect folding patio doors, creating a cohesive modern ADU design throughout. The compact opening provides ventilation and natural light, enhancing the spa-like atmosphere along with natural stone flooring. The matching glass lines and sleek profiles of the NanaWall Generation 4 comprehensive product line further unify visual consistency, allowing each system to fit into the architectural style seamlessly.
“This project had three bifold glass walls, a pair of double French doors with sidelites, and a single tilt turn window,” says architect Lauren Cawse. “Being able to work with a single manufacturer provided aesthetic cohesiveness and simplified coordination.”
Sustainability Where It Matters Most
New York weather can vary from hot 85-degree summers to cold 26-degree winters. Creating an efficient living space was a primary goal. To achieve this, the design included Timber HP-insulated walls and floors with a heat pump system for effective heating and cooling. Additionally, the steel effect folding patio doors and windows were specified with double-glazed panels to ensure a tight building envelope.
Indoor-Outdoor Living Spaces for Relaxing and Entertaining
In-house landscape designer Liz Pulver worked closely with the team to conceive open-air spaces that enhanced the connection between inside and outside. To the south end of the lot, the landscape transitions into an “enhanced meadow,” allowing the cottage to feel embedded within the surrounding fields rather than set apart from them. A circular pool was designed to mimic a natural pond with a modest footprint. Around it, a minimalist fence and sunken stone ha-ha wall offer discreet safety for young children.
Limited space due to existing infrastructure and zoning setbacks left only a small footprint for the swimming pool, prompting the designer to propose a circular form that maximized the usable swimming area. “We felt that the perfect way to integrate a pool into the property and to honor the landscape would be to treat the pool as a piece of art itself,” says Pulver. “The result is a beautiful round pool that serves as both a functional retreat and a sculptural moment.”
Final Thoughts: A Barn-Inspired Design for Contemporary Living
This modern ADU design skillfully combines modern features with the enduring charm of traditional barns. The outcome is a welcoming living space that stands out amid a stunning landscape. Natural materials that mimic the beauty of the outdoors, expansive steel effect folding patio doors that fill the space with fresh air and natural light, and a restrained interior design work together to create an inviting retreat for everyday living, throughout the seasons.
“When entering the site, the cottage feels as though it was always there,” says Cawse. “It achieves its two opposing goals by creating a feeling of intimacy and enclosure near the house while also functioning as a threshold to the expansive fields and views beyond.”
Explore how NanaWall folding patio doors elevate other ADU spaces in our inspiring project photo gallery!
Frequently Asked Questions (FAQs)
What is Slimline Steel Effect?
Steel Effect is a folding patio door design option that replicates the appearance of traditional steel-framed glass doors. It combines the look of steel with the performance benefits of aluminum, including energy efficiency, low maintenance, greater design flexibility, and lower cost.
How does a NanaWall Steel Effect aluminum system compare to traditional steel-framed glass doors?
NanaWall Slimline Steel Effect folding patio doors replicate the narrow frames of traditional steel doors with improved weather and thermal performance and easier operation. They are lighter, more corrosion-resistant, and feature a thermally broken design for better energy efficiency and lower long-term maintenance.
What are the benefits of Steel Effect folding glass walls?
Steel Effect folding glass walls deliver the narrow sightlines and grid patterns of traditional steel, combined with the performance and low maintenance of aluminum. The slimline steel effect option offers all the benefits of our Generation 4 product line, including the FourFold / SixFold floating panel set option and smooth operation with Gothic arch stainless steel rollers on a stainless steel track.
Can Slimline Steel Effect glass walls be customized?
Yes, these systems offer a high level of customization to suit different architectural styles, including simulated divided lites specified in various patterns, popular SE colors for a true steel effect look, and a contemporary glass stop option for a refined look. Contact your local NanaWall representative for additional options here.
How energy-efficient and weather-resistant are Slimline Steel Effect folding patio doors?
Steel effect folding systems are engineered for strong thermal and weather performance. Thermally broken frames and high-performance glazing help improve energy efficiency. Each NanaWall system has been independently tested for air, water, structural integrity, and forced entry with excellent results.
Klopf ArchitectureNestled in the hills of Orinda, California, this 1951 residence is one of only seven extant homes, now known as “The Magnificent Seven”, designed by architect Olof Dahlstrand, a protégé of Frank Lloyd Wright. With its low-slung rooflines, natural materials, and deep integration with the sloping landscape, the home is a pristine example of mid-century modern design inspired by Wright’s organic principles. Over the years, prior homeowners have emphasized preservation, ensuring that the house remained relatively untouched. Each owner has respected the original architecture and stayed true to Dahlstrand’s intent. When a family of five—two college-aged sons and a middle school-aged daughter—acquired the property, they were captivated by its history, legacy of care, and architectural significance. While they appreciated Dahlstrand’s original vision, they also recognized the need to adapt the home for contemporary living while preserving its design integrity.
The remodel was conceived as a thoughtful response to the past—an effort to bring the house into the 21st century without compromising its soul. The primary mandate was to maintain architectural continuity while improving the functionality, comfort, and livability for a modern family. The design team—architects and contractor alike—worked with a shared reverence for the original architecture, allowing that mindset to guide even the most technical or pragmatic decisions.
A key objective was to increase natural light in the kitchen—a departure from Wrightian principles of enclosed, intimate cooking spaces—while maintaining the home’s architectural language. The kitchen was reconfigured to foster a stronger connection to adjacent living spaces while retaining the underlying concept of spatial separation. One of the most transformative architectural changes was the removal of a ridge beam that was originally planned to remain visible through the kitchen. During construction, the team collaborated on a better solution: a wide-flanged steel beam concealed within the roof envelope. This subtle move preserved the clean lines and ceiling continuity, a modern update carried out with utmost respect for the existing framework.
The home’s original powder room, previously accessible only through the kitchen, was relocated for better flow and privacy. A new powder room was carved out of former kitchen cabinetry—a narrow, interior space that could have felt dark and enclosed. To avoid this, the design extended the line of original transom windows into the new powder room and added a skylight above the vanity. The result is a bright and airy space that feels consistent with the rest of the home. Other updates included the installation of new solid-core interior doors with veneers carefully matched to the original mahogany, enhancing the continuity of the interiors. Even smaller decisions, such as placing the door knobs at 42 inches high, mirrored the original proportions. Every choice reflected a shared belief between the architect, contractor, and client: that new work should serve the integrity of the old.
The home’s extensive interior redwood millwork and paneling was meticulously restored. Where new materials were introduced—such as the replacement redwood soffit paneling—the contractor took pains to find finish nails that matched the original, rather than using modern equivalents. This level of craftsmanship and collaboration defined the project. It extended even to the detailing of a blind door to the new powder room, which had to disappear into the existing redwood board-and-batten wall. It was a team effort: the owner found a suitable handle, the architects devised the custom in-swing mechanism, and the contractor executed it so the door aligned precisely with the battens. Throughout, the homeowners were deeply engaged in the design process. One, a meticulous design enthusiast, focused on aesthetic integrity and historic detail. The other brought a practical and function-driven perspective, ensuring that new fixtures and materials would be durable and require minimal maintenance.
While the home’s location posed no major site challenges, sustainability was a key concern. The team upgraded the roof insulation, installed solar panels with battery storage, and added ductless mini-split cooling systems. Lighting was another area where modern technology was woven into a historic framework: new square LED fixtures echo the original custom perimeter soffit lights, maintaining the design language while offering advanced performance.
A planned expansion of a bedroom into suite with a bathroom had to be shelved due to budget constraints and the high cost of below-grade foundation work. Still, the team focused their efforts on making the most of the existing footprint, resolving constraints through design ingenuity rather than adding square footage. This renovation represents a collaborative achievement in preserving and evolving a historically significant home. Every decision was shaped by a shared ethos among clients, architects, and contractor: to maintain the home’s architectural soul while updating it for contemporary life. The result is a timeless modernist residence that continues Olof Dahlstrand’s legacy, remaining grounded in nature, craftsmanship, and human-scale design.
Klopf Architecture Team: John Klopf, AIA, Klara Kevane, Fernanda Bernardes
Interior Architectural Design: Klopf Architecture
Structural Engineer: Daniel Bastiao
Contractor: Don Larwood, Larwood Construction
Photography: Mariko Reed
Year Completed: 2022
Klopf ArchitectureNestled in the hills of Orinda, California, this 1951 residence is one of only seven extant homes, now known as “The Magnificent Seven”, designed by architect Olof Dahlstrand, a protégé of Frank Lloyd Wright. With its low-slung rooflines, natural materials, and deep integration with the sloping landscape, the home is a pristine example of mid-century modern design inspired by Wright’s organic principles. Over the years, prior homeowners have emphasized preservation, ensuring that the house remained relatively untouched. Each owner has respected the original architecture and stayed true to Dahlstrand’s intent. When a family of five—two college-aged sons and a middle school-aged daughter—acquired the property, they were captivated by its history, legacy of care, and architectural significance. While they appreciated Dahlstrand’s original vision, they also recognized the need to adapt the home for contemporary living while preserving its design integrity.
The remodel was conceived as a thoughtful response to the past—an effort to bring the house into the 21st century without compromising its soul. The primary mandate was to maintain architectural continuity while improving the functionality, comfort, and livability for a modern family. The design team—architects and contractor alike—worked with a shared reverence for the original architecture, allowing that mindset to guide even the most technical or pragmatic decisions.
A key objective was to increase natural light in the kitchen—a departure from Wrightian principles of enclosed, intimate cooking spaces—while maintaining the home’s architectural language. The kitchen was reconfigured to foster a stronger connection to adjacent living spaces while retaining the underlying concept of spatial separation. One of the most transformative architectural changes was the removal of a ridge beam that was originally planned to remain visible through the kitchen. During construction, the team collaborated on a better solution: a wide-flanged steel beam concealed within the roof envelope. This subtle move preserved the clean lines and ceiling continuity, a modern update carried out with utmost respect for the existing framework.
The home’s original powder room, previously accessible only through the kitchen, was relocated for better flow and privacy. A new powder room was carved out of former kitchen cabinetry—a narrow, interior space that could have felt dark and enclosed. To avoid this, the design extended the line of original transom windows into the new powder room and added a skylight above the vanity. The result is a bright and airy space that feels consistent with the rest of the home. Other updates included the installation of new solid-core interior doors with veneers carefully matched to the original mahogany, enhancing the continuity of the interiors. Even smaller decisions, such as placing the door knobs at 42 inches high, mirrored the original proportions. Every choice reflected a shared belief between the architect, contractor, and client: that new work should serve the integrity of the old.
The home’s extensive interior redwood millwork and paneling was meticulously restored. Where new materials were introduced—such as the replacement redwood soffit paneling—the contractor took pains to find finish nails that matched the original, rather than using modern equivalents. This level of craftsmanship and collaboration defined the project. It extended even to the detailing of a blind door to the new powder room, which had to disappear into the existing redwood board-and-batten wall. It was a team effort: the owner found a suitable handle, the architects devised the custom in-swing mechanism, and the contractor executed it so the door aligned precisely with the battens. Throughout, the homeowners were deeply engaged in the design process. One, a meticulous design enthusiast, focused on aesthetic integrity and historic detail. The other brought a practical and function-driven perspective, ensuring that new fixtures and materials would be durable and require minimal maintenance.
While the home’s location posed no major site challenges, sustainability was a key concern. The team upgraded the roof insulation, installed solar panels with battery storage, and added ductless mini-split cooling systems. Lighting was another area where modern technology was woven into a historic framework: new square LED fixtures echo the original custom perimeter soffit lights, maintaining the design language while offering advanced performance.
A planned expansion of a bedroom into suite with a bathroom had to be shelved due to budget constraints and the high cost of below-grade foundation work. Still, the team focused their efforts on making the most of the existing footprint, resolving constraints through design ingenuity rather than adding square footage. This renovation represents a collaborative achievement in preserving and evolving a historically significant home. Every decision was shaped by a shared ethos among clients, architects, and contractor: to maintain the home’s architectural soul while updating it for contemporary life. The result is a timeless modernist residence that continues Olof Dahlstrand’s legacy, remaining grounded in nature, craftsmanship, and human-scale design.
Klopf Architecture Team: John Klopf, AIA, Klara Kevane, Fernanda Bernardes
Interior Architectural Design: Klopf Architecture
Structural Engineer: Daniel Bastiao
Contractor: Don Larwood, Larwood Construction
Photography: Mariko Reed
Year Completed: 2022
Klopf ArchitectureNestled in the hills of Orinda, California, this 1951 residence is one of only seven extant homes, now known as “The Magnificent Seven”, designed by architect Olof Dahlstrand, a protégé of Frank Lloyd Wright. With its low-slung rooflines, natural materials, and deep integration with the sloping landscape, the home is a pristine example of mid-century modern design inspired by Wright’s organic principles. Over the years, prior homeowners have emphasized preservation, ensuring that the house remained relatively untouched. Each owner has respected the original architecture and stayed true to Dahlstrand’s intent. When a family of five—two college-aged sons and a middle school-aged daughter—acquired the property, they were captivated by its history, legacy of care, and architectural significance. While they appreciated Dahlstrand’s original vision, they also recognized the need to adapt the home for contemporary living while preserving its design integrity.
The remodel was conceived as a thoughtful response to the past—an effort to bring the house into the 21st century without compromising its soul. The primary mandate was to maintain architectural continuity while improving the functionality, comfort, and livability for a modern family. The design team—architects and contractor alike—worked with a shared reverence for the original architecture, allowing that mindset to guide even the most technical or pragmatic decisions.
A key objective was to increase natural light in the kitchen—a departure from Wrightian principles of enclosed, intimate cooking spaces—while maintaining the home’s architectural language. The kitchen was reconfigured to foster a stronger connection to adjacent living spaces while retaining the underlying concept of spatial separation. One of the most transformative architectural changes was the removal of a ridge beam that was originally planned to remain visible through the kitchen. During construction, the team collaborated on a better solution: a wide-flanged steel beam concealed within the roof envelope. This subtle move preserved the clean lines and ceiling continuity, a modern update carried out with utmost respect for the existing framework.
The home’s original powder room, previously accessible only through the kitchen, was relocated for better flow and privacy. A new powder room was carved out of former kitchen cabinetry—a narrow, interior space that could have felt dark and enclosed. To avoid this, the design extended the line of original transom windows into the new powder room and added a skylight above the vanity. The result is a bright and airy space that feels consistent with the rest of the home. Other updates included the installation of new solid-core interior doors with veneers carefully matched to the original mahogany, enhancing the continuity of the interiors. Even smaller decisions, such as placing the door knobs at 42 inches high, mirrored the original proportions. Every choice reflected a shared belief between the architect, contractor, and client: that new work should serve the integrity of the old.
The home’s extensive interior redwood millwork and paneling was meticulously restored. Where new materials were introduced—such as the replacement redwood soffit paneling—the contractor took pains to find finish nails that matched the original, rather than using modern equivalents. This level of craftsmanship and collaboration defined the project. It extended even to the detailing of a blind door to the new powder room, which had to disappear into the existing redwood board-and-batten wall. It was a team effort: the owner found a suitable handle, the architects devised the custom in-swing mechanism, and the contractor executed it so the door aligned precisely with the battens. Throughout, the homeowners were deeply engaged in the design process. One, a meticulous design enthusiast, focused on aesthetic integrity and historic detail. The other brought a practical and function-driven perspective, ensuring that new fixtures and materials would be durable and require minimal maintenance.
While the home’s location posed no major site challenges, sustainability was a key concern. The team upgraded the roof insulation, installed solar panels with battery storage, and added ductless mini-split cooling systems. Lighting was another area where modern technology was woven into a historic framework: new square LED fixtures echo the original custom perimeter soffit lights, maintaining the design language while offering advanced performance.
A planned expansion of a bedroom into suite with a bathroom had to be shelved due to budget constraints and the high cost of below-grade foundation work. Still, the team focused their efforts on making the most of the existing footprint, resolving constraints through design ingenuity rather than adding square footage. This renovation represents a collaborative achievement in preserving and evolving a historically significant home. Every decision was shaped by a shared ethos among clients, architects, and contractor: to maintain the home’s architectural soul while updating it for contemporary life. The result is a timeless modernist residence that continues Olof Dahlstrand’s legacy, remaining grounded in nature, craftsmanship, and human-scale design.
Klopf Architecture Team: John Klopf, AIA, Klara Kevane, Fernanda Bernardes
Interior Architectural Design: Klopf Architecture
Structural Engineer: Daniel Bastiao
Contractor: Don Larwood, Larwood Construction
Photography: Mariko Reed
Year Completed: 2022
Klopf ArchitectureNestled in the hills of Orinda, California, this 1951 residence is one of only seven extant homes, now known as “The Magnificent Seven”, designed by architect Olof Dahlstrand, a protégé of Frank Lloyd Wright. With its low-slung rooflines, natural materials, and deep integration with the sloping landscape, the home is a pristine example of mid-century modern design inspired by Wright’s organic principles. Over the years, prior homeowners have emphasized preservation, ensuring that the house remained relatively untouched. Each owner has respected the original architecture and stayed true to Dahlstrand’s intent. When a family of five—two college-aged sons and a middle school-aged daughter—acquired the property, they were captivated by its history, legacy of care, and architectural significance. While they appreciated Dahlstrand’s original vision, they also recognized the need to adapt the home for contemporary living while preserving its design integrity.
The remodel was conceived as a thoughtful response to the past—an effort to bring the house into the 21st century without compromising its soul. The primary mandate was to maintain architectural continuity while improving the functionality, comfort, and livability for a modern family. The design team—architects and contractor alike—worked with a shared reverence for the original architecture, allowing that mindset to guide even the most technical or pragmatic decisions.
A key objective was to increase natural light in the kitchen—a departure from Wrightian principles of enclosed, intimate cooking spaces—while maintaining the home’s architectural language. The kitchen was reconfigured to foster a stronger connection to adjacent living spaces while retaining the underlying concept of spatial separation. One of the most transformative architectural changes was the removal of a ridge beam that was originally planned to remain visible through the kitchen. During construction, the team collaborated on a better solution: a wide-flanged steel beam concealed within the roof envelope. This subtle move preserved the clean lines and ceiling continuity, a modern update carried out with utmost respect for the existing framework.
The home’s original powder room, previously accessible only through the kitchen, was relocated for better flow and privacy. A new powder room was carved out of former kitchen cabinetry—a narrow, interior space that could have felt dark and enclosed. To avoid this, the design extended the line of original transom windows into the new powder room and added a skylight above the vanity. The result is a bright and airy space that feels consistent with the rest of the home. Other updates included the installation of new solid-core interior doors with veneers carefully matched to the original mahogany, enhancing the continuity of the interiors. Even smaller decisions, such as placing the door knobs at 42 inches high, mirrored the original proportions. Every choice reflected a shared belief between the architect, contractor, and client: that new work should serve the integrity of the old.
The home’s extensive interior redwood millwork and paneling was meticulously restored. Where new materials were introduced—such as the replacement redwood soffit paneling—the contractor took pains to find finish nails that matched the original, rather than using modern equivalents. This level of craftsmanship and collaboration defined the project. It extended even to the detailing of a blind door to the new powder room, which had to disappear into the existing redwood board-and-batten wall. It was a team effort: the owner found a suitable handle, the architects devised the custom in-swing mechanism, and the contractor executed it so the door aligned precisely with the battens. Throughout, the homeowners were deeply engaged in the design process. One, a meticulous design enthusiast, focused on aesthetic integrity and historic detail. The other brought a practical and function-driven perspective, ensuring that new fixtures and materials would be durable and require minimal maintenance.
While the home’s location posed no major site challenges, sustainability was a key concern. The team upgraded the roof insulation, installed solar panels with battery storage, and added ductless mini-split cooling systems. Lighting was another area where modern technology was woven into a historic framework: new square LED fixtures echo the original custom perimeter soffit lights, maintaining the design language while offering advanced performance.
A planned expansion of a bedroom into suite with a bathroom had to be shelved due to budget constraints and the high cost of below-grade foundation work. Still, the team focused their efforts on making the most of the existing footprint, resolving constraints through design ingenuity rather than adding square footage. This renovation represents a collaborative achievement in preserving and evolving a historically significant home. Every decision was shaped by a shared ethos among clients, architects, and contractor: to maintain the home’s architectural soul while updating it for contemporary life. The result is a timeless modernist residence that continues Olof Dahlstrand’s legacy, remaining grounded in nature, craftsmanship, and human-scale design.
Klopf Architecture Team: John Klopf, AIA, Klara Kevane, Fernanda Bernardes
Interior Architectural Design: Klopf Architecture
Structural Engineer: Daniel Bastiao
Contractor: Don Larwood, Larwood Construction
Photography: Mariko Reed
Year Completed: 2022
NanaWallNestled in the lush landscape, a modern reinterpretation of a once-fallen barn now features a charming guest cottage with stylish details and contemporary amenities. Situated along a narrow lot in Germantown, New York, the cottage completes a cluster of existing buildings, forming an intimate courtyard on one side. Steel effect folding patio doors fully open the living areas to the expansive fields and the Catskill Mountains beyond.
The homeowners, a young family with parents living abroad, envisioned a cozy yet modern ADU for extended stays. Designed by Lauren Cawse, AIA, architect and partner at The Art of Building, the year-round retreat draws inspiration from traditional local barns while embracing a seamless indoor-outdoor connection.
Captivating Guest Cottage Design Enhances the Senses with Steel Effect Folding Patio Doors
The modern ADU design started with the site itself. Positioned between residential and commercial neighbors, the elongated property required a careful balance of privacy and openness. Architect Lauren Cawse approached the layout by redefining the existing house and garage as the east and west sides of an outdoor room, with the new cottage forming its southern boundary. This arrangement created a clear courtyard near the main residence while directing the 800-square-foot guest house toward the open meadow and the distant Catskill Mountains.
“The unique character of the site and its history inspired the architectural direction,” says Cawse. “The intent was to create a secondary structure in the compound in clear contrast to the modern farmhouse style of the house and garage.”
A Barn-Inspired Exterior Adds Visual Flair
The exterior envelope evokes a traditional barn with a simple gable shape, weathered wood siding, cedar shingles, and a foundation veneer made of local fieldstone. A large sliding barn door adds a complementary feature to the courtyard-facing side, creating a dynamic opening that maintains uninterrupted views through the cottage to the meadow beyond.
Steel effect folding patio doors surrounding the structure add a modern touch of transparency, and simulated divided lites allow the contemporary glass wall systems to harmonize with the traditional elements of the modern ADU design.
“The goal was to fully open the living areas to the outdoors, framing views to the meadows and mountains,” says Cawse. “The positioning of the NanaWall systems frames the views and, when open, dissolves the boundary between inside and out.”
Interior Design That Mirrors Nature’s Tranquility
Inside, the design program features a simple layout with one bedroom, a full bath, a kitchenette, and a living area with a wood-burning stove. The interior, a collaboration between The Art of Building and the homeowners, is defined by an understated palette and tactile materials that reflect the natural setting. Color is introduced through the framed glass views on all sides of the structure. Reclaimed timber collar ties span the ceiling overhead, while stone surfaces and naturally patinated metal accents add quiet texture throughout.
Custom hand-painted Delft tiles along the kitchen backsplash add personal detail, and terra cotta flooring in the bathroom brings warmth and old-world charm. Soaring ceilings and abundant daylight create a peaceful play of light and shadow, shifting subtly with the seasons and emphasizing the cottage’s connection to the natural landscape outside.
Sleek Steel Effect Folding Patio Doors Elevate the Modern ADU Design Aesthetic
Three customized steel effect folding patio doors define the living space, each aligned to respond to a different edge of the site. The largest, spanning nearly 20 feet wide and just under eight feet tall, opens directly onto the stone patio, allowing the main gathering area to extend fully into the landscape. Along the side of the living room, a smaller 10-foot-wide system introduces more light and ventilation, nearly creating an open corner condition if not for the structural post that supports the façade and roofline.
At the rear, a fourth ten-foot-wide system features a French door swing panel configuration that opens toward the courtyard, strengthening the design connection to the main residence. All steel effect folding patio doors were specified with a low-maintenance, water-rated Performance Sill to safeguard against inclement weather while providing a seamless, barrier-free transition to the outdoor patio.
Unique Customizations for Visual Appeal and a Steel Effect
Each folding patio door system is configured to open outward, maximizing usable floor space in the compact interior and allowing furniture placement to remain uninterrupted. By stacking outward, the steel effect folding patio doors, specified in a SE Classic Bronze powder coat, ensure every inch of the cottage is optimized. Simulated divided lites create a consistent rhythm across windows and doors, maintaining alignment with the traditional barn-inspired exterior.
In the bedroom, a three-panel, 10-foot-wide system mirrors these customizations, matching the steel effect divided-lite pattern and outward-opening configuration, extending the indoor-outdoor connection while preserving visual continuity throughout the ADU.
“The divided lites were crucial to the architectural vision, and while budget prohibited a steel and glass system, NanaWall Systems’ thin frames provide the open and airy feeling we hoped to attain,” says Cawse. “Simulated divided lites transition the thoroughly modern element of the glass walls to remain in harmony with the otherwise traditional palette.”
Matching Windows and Doors: Create a Cohesive Design Program
Alongside the larger openings in the living areas and bedroom, a smaller 3-foot-tall NanaWall tilt turn window was added to the bathroom. This window-sized NanaWall system perfectly matches the divided lite panels and sleek frames of the steel effect folding patio doors, creating a cohesive modern ADU design throughout. The compact opening provides ventilation and natural light, enhancing the spa-like atmosphere along with natural stone flooring. The matching glass lines and sleek profiles of the NanaWall Generation 4 comprehensive product line further unify visual consistency, allowing each system to fit into the architectural style seamlessly.
“This project had three bifold glass walls, a pair of double French doors with sidelites, and a single tilt turn window,” says architect Lauren Cawse. “Being able to work with a single manufacturer provided aesthetic cohesiveness and simplified coordination.”
Sustainability Where It Matters Most
New York weather can vary from hot 85-degree summers to cold 26-degree winters. Creating an efficient living space was a primary goal. To achieve this, the design included Timber HP-insulated walls and floors with a heat pump system for effective heating and cooling. Additionally, the steel effect folding patio doors and windows were specified with double-glazed panels to ensure a tight building envelope.
Indoor-Outdoor Living Spaces for Relaxing and Entertaining
In-house landscape designer Liz Pulver worked closely with the team to conceive open-air spaces that enhanced the connection between inside and outside. To the south end of the lot, the landscape transitions into an “enhanced meadow,” allowing the cottage to feel embedded within the surrounding fields rather than set apart from them. A circular pool was designed to mimic a natural pond with a modest footprint. Around it, a minimalist fence and sunken stone ha-ha wall offer discreet safety for young children.
Limited space due to existing infrastructure and zoning setbacks left only a small footprint for the swimming pool, prompting the designer to propose a circular form that maximized the usable swimming area. “We felt that the perfect way to integrate a pool into the property and to honor the landscape would be to treat the pool as a piece of art itself,” says Pulver. “The result is a beautiful round pool that serves as both a functional retreat and a sculptural moment.”
Final Thoughts: A Barn-Inspired Design for Contemporary Living
This modern ADU design skillfully combines modern features with the enduring charm of traditional barns. The outcome is a welcoming living space that stands out amid a stunning landscape. Natural materials that mimic the beauty of the outdoors, expansive steel effect folding patio doors that fill the space with fresh air and natural light, and a restrained interior design work together to create an inviting retreat for everyday living, throughout the seasons.
“When entering the site, the cottage feels as though it was always there,” says Cawse. “It achieves its two opposing goals by creating a feeling of intimacy and enclosure near the house while also functioning as a threshold to the expansive fields and views beyond.”
Explore how NanaWall folding patio doors elevate other ADU spaces in our inspiring project photo gallery!
Frequently Asked Questions (FAQs)
What is Slimline Steel Effect?
Steel Effect is a folding patio door design option that replicates the appearance of traditional steel-framed glass doors. It combines the look of steel with the performance benefits of aluminum, including energy efficiency, low maintenance, greater design flexibility, and lower cost.
How does a NanaWall Steel Effect aluminum system compare to traditional steel-framed glass doors?
NanaWall Slimline Steel Effect folding patio doors replicate the narrow frames of traditional steel doors with improved weather and thermal performance and easier operation. They are lighter, more corrosion-resistant, and feature a thermally broken design for better energy efficiency and lower long-term maintenance.
What are the benefits of Steel Effect folding glass walls?
Steel Effect folding glass walls deliver the narrow sightlines and grid patterns of traditional steel, combined with the performance and low maintenance of aluminum. The slimline steel effect option offers all the benefits of our Generation 4 product line, including the FourFold / SixFold floating panel set option and smooth operation with Gothic arch stainless steel rollers on a stainless steel track.
Can Slimline Steel Effect glass walls be customized?
Yes, these systems offer a high level of customization to suit different architectural styles, including simulated divided lites specified in various patterns, popular SE colors for a true steel effect look, and a contemporary glass stop option for a refined look. Contact your local NanaWall representative for additional options here.
How energy-efficient and weather-resistant are Slimline Steel Effect folding patio doors?
Steel effect folding systems are engineered for strong thermal and weather performance. Thermally broken frames and high-performance glazing help improve energy efficiency. Each NanaWall system has been independently tested for air, water, structural integrity, and forced entry with excellent results.
NanaWallNestled in the lush landscape, a modern reinterpretation of a once-fallen barn now features a charming guest cottage with stylish details and contemporary amenities. Situated along a narrow lot in Germantown, New York, the cottage completes a cluster of existing buildings, forming an intimate courtyard on one side. Steel effect folding patio doors fully open the living areas to the expansive fields and the Catskill Mountains beyond.
The homeowners, a young family with parents living abroad, envisioned a cozy yet modern ADU for extended stays. Designed by Lauren Cawse, AIA, architect and partner at The Art of Building, the year-round retreat draws inspiration from traditional local barns while embracing a seamless indoor-outdoor connection.
Captivating Guest Cottage Design Enhances the Senses with Steel Effect Folding Patio Doors
The modern ADU design started with the site itself. Positioned between residential and commercial neighbors, the elongated property required a careful balance of privacy and openness. Architect Lauren Cawse approached the layout by redefining the existing house and garage as the east and west sides of an outdoor room, with the new cottage forming its southern boundary. This arrangement created a clear courtyard near the main residence while directing the 800-square-foot guest house toward the open meadow and the distant Catskill Mountains.
“The unique character of the site and its history inspired the architectural direction,” says Cawse. “The intent was to create a secondary structure in the compound in clear contrast to the modern farmhouse style of the house and garage.”
A Barn-Inspired Exterior Adds Visual Flair
The exterior envelope evokes a traditional barn with a simple gable shape, weathered wood siding, cedar shingles, and a foundation veneer made of local fieldstone. A large sliding barn door adds a complementary feature to the courtyard-facing side, creating a dynamic opening that maintains uninterrupted views through the cottage to the meadow beyond.
Steel effect folding patio doors surrounding the structure add a modern touch of transparency, and simulated divided lites allow the contemporary glass wall systems to harmonize with the traditional elements of the modern ADU design.
“The goal was to fully open the living areas to the outdoors, framing views to the meadows and mountains,” says Cawse. “The positioning of the NanaWall systems frames the views and, when open, dissolves the boundary between inside and out.”
Interior Design That Mirrors Nature’s Tranquility
Inside, the design program features a simple layout with one bedroom, a full bath, a kitchenette, and a living area with a wood-burning stove. The interior, a collaboration between The Art of Building and the homeowners, is defined by an understated palette and tactile materials that reflect the natural setting. Color is introduced through the framed glass views on all sides of the structure. Reclaimed timber collar ties span the ceiling overhead, while stone surfaces and naturally patinated metal accents add quiet texture throughout.
Custom hand-painted Delft tiles along the kitchen backsplash add personal detail, and terra cotta flooring in the bathroom brings warmth and old-world charm. Soaring ceilings and abundant daylight create a peaceful play of light and shadow, shifting subtly with the seasons and emphasizing the cottage’s connection to the natural landscape outside.
Sleek Steel Effect Folding Patio Doors Elevate the Modern ADU Design Aesthetic
Three customized steel effect folding patio doors define the living space, each aligned to respond to a different edge of the site. The largest, spanning nearly 20 feet wide and just under eight feet tall, opens directly onto the stone patio, allowing the main gathering area to extend fully into the landscape. Along the side of the living room, a smaller 10-foot-wide system introduces more light and ventilation, nearly creating an open corner condition if not for the structural post that supports the façade and roofline.
At the rear, a fourth ten-foot-wide system features a French door swing panel configuration that opens toward the courtyard, strengthening the design connection to the main residence. All steel effect folding patio doors were specified with a low-maintenance, water-rated Performance Sill to safeguard against inclement weather while providing a seamless, barrier-free transition to the outdoor patio.
Unique Customizations for Visual Appeal and a Steel Effect
Each folding patio door system is configured to open outward, maximizing usable floor space in the compact interior and allowing furniture placement to remain uninterrupted. By stacking outward, the steel effect folding patio doors, specified in a SE Classic Bronze powder coat, ensure every inch of the cottage is optimized. Simulated divided lites create a consistent rhythm across windows and doors, maintaining alignment with the traditional barn-inspired exterior.
In the bedroom, a three-panel, 10-foot-wide system mirrors these customizations, matching the steel effect divided-lite pattern and outward-opening configuration, extending the indoor-outdoor connection while preserving visual continuity throughout the ADU.
“The divided lites were crucial to the architectural vision, and while budget prohibited a steel and glass system, NanaWall Systems’ thin frames provide the open and airy feeling we hoped to attain,” says Cawse. “Simulated divided lites transition the thoroughly modern element of the glass walls to remain in harmony with the otherwise traditional palette.”
Matching Windows and Doors: Create a Cohesive Design Program
Alongside the larger openings in the living areas and bedroom, a smaller 3-foot-tall NanaWall tilt turn window was added to the bathroom. This window-sized NanaWall system perfectly matches the divided lite panels and sleek frames of the steel effect folding patio doors, creating a cohesive modern ADU design throughout. The compact opening provides ventilation and natural light, enhancing the spa-like atmosphere along with natural stone flooring. The matching glass lines and sleek profiles of the NanaWall Generation 4 comprehensive product line further unify visual consistency, allowing each system to fit into the architectural style seamlessly.
“This project had three bifold glass walls, a pair of double French doors with sidelites, and a single tilt turn window,” says architect Lauren Cawse. “Being able to work with a single manufacturer provided aesthetic cohesiveness and simplified coordination.”
Sustainability Where It Matters Most
New York weather can vary from hot 85-degree summers to cold 26-degree winters. Creating an efficient living space was a primary goal. To achieve this, the design included Timber HP-insulated walls and floors with a heat pump system for effective heating and cooling. Additionally, the steel effect folding patio doors and windows were specified with double-glazed panels to ensure a tight building envelope.
Indoor-Outdoor Living Spaces for Relaxing and Entertaining
In-house landscape designer Liz Pulver worked closely with the team to conceive open-air spaces that enhanced the connection between inside and outside. To the south end of the lot, the landscape transitions into an “enhanced meadow,” allowing the cottage to feel embedded within the surrounding fields rather than set apart from them. A circular pool was designed to mimic a natural pond with a modest footprint. Around it, a minimalist fence and sunken stone ha-ha wall offer discreet safety for young children.
Limited space due to existing infrastructure and zoning setbacks left only a small footprint for the swimming pool, prompting the designer to propose a circular form that maximized the usable swimming area. “We felt that the perfect way to integrate a pool into the property and to honor the landscape would be to treat the pool as a piece of art itself,” says Pulver. “The result is a beautiful round pool that serves as both a functional retreat and a sculptural moment.”
Final Thoughts: A Barn-Inspired Design for Contemporary Living
This modern ADU design skillfully combines modern features with the enduring charm of traditional barns. The outcome is a welcoming living space that stands out amid a stunning landscape. Natural materials that mimic the beauty of the outdoors, expansive steel effect folding patio doors that fill the space with fresh air and natural light, and a restrained interior design work together to create an inviting retreat for everyday living, throughout the seasons.
“When entering the site, the cottage feels as though it was always there,” says Cawse. “It achieves its two opposing goals by creating a feeling of intimacy and enclosure near the house while also functioning as a threshold to the expansive fields and views beyond.”
Explore how NanaWall folding patio doors elevate other ADU spaces in our inspiring project photo gallery!
Frequently Asked Questions (FAQs)
What is Slimline Steel Effect?
Steel Effect is a folding patio door design option that replicates the appearance of traditional steel-framed glass doors. It combines the look of steel with the performance benefits of aluminum, including energy efficiency, low maintenance, greater design flexibility, and lower cost.
How does a NanaWall Steel Effect aluminum system compare to traditional steel-framed glass doors?
NanaWall Slimline Steel Effect folding patio doors replicate the narrow frames of traditional steel doors with improved weather and thermal performance and easier operation. They are lighter, more corrosion-resistant, and feature a thermally broken design for better energy efficiency and lower long-term maintenance.
What are the benefits of Steel Effect folding glass walls?
Steel Effect folding glass walls deliver the narrow sightlines and grid patterns of traditional steel, combined with the performance and low maintenance of aluminum. The slimline steel effect option offers all the benefits of our Generation 4 product line, including the FourFold / SixFold floating panel set option and smooth operation with Gothic arch stainless steel rollers on a stainless steel track.
Can Slimline Steel Effect glass walls be customized?
Yes, these systems offer a high level of customization to suit different architectural styles, including simulated divided lites specified in various patterns, popular SE colors for a true steel effect look, and a contemporary glass stop option for a refined look. Contact your local NanaWall representative for additional options here.
How energy-efficient and weather-resistant are Slimline Steel Effect folding patio doors?
Steel effect folding systems are engineered for strong thermal and weather performance. Thermally broken frames and high-performance glazing help improve energy efficiency. Each NanaWall system has been independently tested for air, water, structural integrity, and forced entry with excellent results.
Klopf ArchitectureNestled in the hills of Orinda, California, this 1951 residence is one of only seven extant homes, now known as “The Magnificent Seven”, designed by architect Olof Dahlstrand, a protégé of Frank Lloyd Wright. With its low-slung rooflines, natural materials, and deep integration with the sloping landscape, the home is a pristine example of mid-century modern design inspired by Wright’s organic principles. Over the years, prior homeowners have emphasized preservation, ensuring that the house remained relatively untouched. Each owner has respected the original architecture and stayed true to Dahlstrand’s intent. When a family of five—two college-aged sons and a middle school-aged daughter—acquired the property, they were captivated by its history, legacy of care, and architectural significance. While they appreciated Dahlstrand’s original vision, they also recognized the need to adapt the home for contemporary living while preserving its design integrity.
The remodel was conceived as a thoughtful response to the past—an effort to bring the house into the 21st century without compromising its soul. The primary mandate was to maintain architectural continuity while improving the functionality, comfort, and livability for a modern family. The design team—architects and contractor alike—worked with a shared reverence for the original architecture, allowing that mindset to guide even the most technical or pragmatic decisions.
A key objective was to increase natural light in the kitchen—a departure from Wrightian principles of enclosed, intimate cooking spaces—while maintaining the home’s architectural language. The kitchen was reconfigured to foster a stronger connection to adjacent living spaces while retaining the underlying concept of spatial separation. One of the most transformative architectural changes was the removal of a ridge beam that was originally planned to remain visible through the kitchen. During construction, the team collaborated on a better solution: a wide-flanged steel beam concealed within the roof envelope. This subtle move preserved the clean lines and ceiling continuity, a modern update carried out with utmost respect for the existing framework.
The home’s original powder room, previously accessible only through the kitchen, was relocated for better flow and privacy. A new powder room was carved out of former kitchen cabinetry—a narrow, interior space that could have felt dark and enclosed. To avoid this, the design extended the line of original transom windows into the new powder room and added a skylight above the vanity. The result is a bright and airy space that feels consistent with the rest of the home. Other updates included the installation of new solid-core interior doors with veneers carefully matched to the original mahogany, enhancing the continuity of the interiors. Even smaller decisions, such as placing the door knobs at 42 inches high, mirrored the original proportions. Every choice reflected a shared belief between the architect, contractor, and client: that new work should serve the integrity of the old.
The home’s extensive interior redwood millwork and paneling was meticulously restored. Where new materials were introduced—such as the replacement redwood soffit paneling—the contractor took pains to find finish nails that matched the original, rather than using modern equivalents. This level of craftsmanship and collaboration defined the project. It extended even to the detailing of a blind door to the new powder room, which had to disappear into the existing redwood board-and-batten wall. It was a team effort: the owner found a suitable handle, the architects devised the custom in-swing mechanism, and the contractor executed it so the door aligned precisely with the battens. Throughout, the homeowners were deeply engaged in the design process. One, a meticulous design enthusiast, focused on aesthetic integrity and historic detail. The other brought a practical and function-driven perspective, ensuring that new fixtures and materials would be durable and require minimal maintenance.
While the home’s location posed no major site challenges, sustainability was a key concern. The team upgraded the roof insulation, installed solar panels with battery storage, and added ductless mini-split cooling systems. Lighting was another area where modern technology was woven into a historic framework: new square LED fixtures echo the original custom perimeter soffit lights, maintaining the design language while offering advanced performance.
A planned expansion of a bedroom into suite with a bathroom had to be shelved due to budget constraints and the high cost of below-grade foundation work. Still, the team focused their efforts on making the most of the existing footprint, resolving constraints through design ingenuity rather than adding square footage. This renovation represents a collaborative achievement in preserving and evolving a historically significant home. Every decision was shaped by a shared ethos among clients, architects, and contractor: to maintain the home’s architectural soul while updating it for contemporary life. The result is a timeless modernist residence that continues Olof Dahlstrand’s legacy, remaining grounded in nature, craftsmanship, and human-scale design.
Klopf Architecture Team: John Klopf, AIA, Klara Kevane, Fernanda Bernardes
Interior Architectural Design: Klopf Architecture
Structural Engineer: Daniel Bastiao
Contractor: Don Larwood, Larwood Construction
Photography: Mariko Reed
Year Completed: 2022
Klopf ArchitectureNestled in the hills of Orinda, California, this 1951 residence is one of only seven extant homes, now known as “The Magnificent Seven”, designed by architect Olof Dahlstrand, a protégé of Frank Lloyd Wright. With its low-slung rooflines, natural materials, and deep integration with the sloping landscape, the home is a pristine example of mid-century modern design inspired by Wright’s organic principles. Over the years, prior homeowners have emphasized preservation, ensuring that the house remained relatively untouched. Each owner has respected the original architecture and stayed true to Dahlstrand’s intent. When a family of five—two college-aged sons and a middle school-aged daughter—acquired the property, they were captivated by its history, legacy of care, and architectural significance. While they appreciated Dahlstrand’s original vision, they also recognized the need to adapt the home for contemporary living while preserving its design integrity.
The remodel was conceived as a thoughtful response to the past—an effort to bring the house into the 21st century without compromising its soul. The primary mandate was to maintain architectural continuity while improving the functionality, comfort, and livability for a modern family. The design team—architects and contractor alike—worked with a shared reverence for the original architecture, allowing that mindset to guide even the most technical or pragmatic decisions.
A key objective was to increase natural light in the kitchen—a departure from Wrightian principles of enclosed, intimate cooking spaces—while maintaining the home’s architectural language. The kitchen was reconfigured to foster a stronger connection to adjacent living spaces while retaining the underlying concept of spatial separation. One of the most transformative architectural changes was the removal of a ridge beam that was originally planned to remain visible through the kitchen. During construction, the team collaborated on a better solution: a wide-flanged steel beam concealed within the roof envelope. This subtle move preserved the clean lines and ceiling continuity, a modern update carried out with utmost respect for the existing framework.
The home’s original powder room, previously accessible only through the kitchen, was relocated for better flow and privacy. A new powder room was carved out of former kitchen cabinetry—a narrow, interior space that could have felt dark and enclosed. To avoid this, the design extended the line of original transom windows into the new powder room and added a skylight above the vanity. The result is a bright and airy space that feels consistent with the rest of the home. Other updates included the installation of new solid-core interior doors with veneers carefully matched to the original mahogany, enhancing the continuity of the interiors. Even smaller decisions, such as placing the door knobs at 42 inches high, mirrored the original proportions. Every choice reflected a shared belief between the architect, contractor, and client: that new work should serve the integrity of the old.
The home’s extensive interior redwood millwork and paneling was meticulously restored. Where new materials were introduced—such as the replacement redwood soffit paneling—the contractor took pains to find finish nails that matched the original, rather than using modern equivalents. This level of craftsmanship and collaboration defined the project. It extended even to the detailing of a blind door to the new powder room, which had to disappear into the existing redwood board-and-batten wall. It was a team effort: the owner found a suitable handle, the architects devised the custom in-swing mechanism, and the contractor executed it so the door aligned precisely with the battens. Throughout, the homeowners were deeply engaged in the design process. One, a meticulous design enthusiast, focused on aesthetic integrity and historic detail. The other brought a practical and function-driven perspective, ensuring that new fixtures and materials would be durable and require minimal maintenance.
While the home’s location posed no major site challenges, sustainability was a key concern. The team upgraded the roof insulation, installed solar panels with battery storage, and added ductless mini-split cooling systems. Lighting was another area where modern technology was woven into a historic framework: new square LED fixtures echo the original custom perimeter soffit lights, maintaining the design language while offering advanced performance.
A planned expansion of a bedroom into suite with a bathroom had to be shelved due to budget constraints and the high cost of below-grade foundation work. Still, the team focused their efforts on making the most of the existing footprint, resolving constraints through design ingenuity rather than adding square footage. This renovation represents a collaborative achievement in preserving and evolving a historically significant home. Every decision was shaped by a shared ethos among clients, architects, and contractor: to maintain the home’s architectural soul while updating it for contemporary life. The result is a timeless modernist residence that continues Olof Dahlstrand’s legacy, remaining grounded in nature, craftsmanship, and human-scale design.
Klopf Architecture Team: John Klopf, AIA, Klara Kevane, Fernanda Bernardes
Interior Architectural Design: Klopf Architecture
Structural Engineer: Daniel Bastiao
Contractor: Don Larwood, Larwood Construction
Photography: Mariko Reed
Year Completed: 2022
Klopf ArchitectureNestled in the hills of Orinda, California, this 1951 residence is one of only seven extant homes, now known as “The Magnificent Seven”, designed by architect Olof Dahlstrand, a protégé of Frank Lloyd Wright. With its low-slung rooflines, natural materials, and deep integration with the sloping landscape, the home is a pristine example of mid-century modern design inspired by Wright’s organic principles. Over the years, prior homeowners have emphasized preservation, ensuring that the house remained relatively untouched. Each owner has respected the original architecture and stayed true to Dahlstrand’s intent. When a family of five—two college-aged sons and a middle school-aged daughter—acquired the property, they were captivated by its history, legacy of care, and architectural significance. While they appreciated Dahlstrand’s original vision, they also recognized the need to adapt the home for contemporary living while preserving its design integrity.
The remodel was conceived as a thoughtful response to the past—an effort to bring the house into the 21st century without compromising its soul. The primary mandate was to maintain architectural continuity while improving the functionality, comfort, and livability for a modern family. The design team—architects and contractor alike—worked with a shared reverence for the original architecture, allowing that mindset to guide even the most technical or pragmatic decisions.
A key objective was to increase natural light in the kitchen—a departure from Wrightian principles of enclosed, intimate cooking spaces—while maintaining the home’s architectural language. The kitchen was reconfigured to foster a stronger connection to adjacent living spaces while retaining the underlying concept of spatial separation. One of the most transformative architectural changes was the removal of a ridge beam that was originally planned to remain visible through the kitchen. During construction, the team collaborated on a better solution: a wide-flanged steel beam concealed within the roof envelope. This subtle move preserved the clean lines and ceiling continuity, a modern update carried out with utmost respect for the existing framework.
The home’s original powder room, previously accessible only through the kitchen, was relocated for better flow and privacy. A new powder room was carved out of former kitchen cabinetry—a narrow, interior space that could have felt dark and enclosed. To avoid this, the design extended the line of original transom windows into the new powder room and added a skylight above the vanity. The result is a bright and airy space that feels consistent with the rest of the home. Other updates included the installation of new solid-core interior doors with veneers carefully matched to the original mahogany, enhancing the continuity of the interiors. Even smaller decisions, such as placing the door knobs at 42 inches high, mirrored the original proportions. Every choice reflected a shared belief between the architect, contractor, and client: that new work should serve the integrity of the old.
The home’s extensive interior redwood millwork and paneling was meticulously restored. Where new materials were introduced—such as the replacement redwood soffit paneling—the contractor took pains to find finish nails that matched the original, rather than using modern equivalents. This level of craftsmanship and collaboration defined the project. It extended even to the detailing of a blind door to the new powder room, which had to disappear into the existing redwood board-and-batten wall. It was a team effort: the owner found a suitable handle, the architects devised the custom in-swing mechanism, and the contractor executed it so the door aligned precisely with the battens. Throughout, the homeowners were deeply engaged in the design process. One, a meticulous design enthusiast, focused on aesthetic integrity and historic detail. The other brought a practical and function-driven perspective, ensuring that new fixtures and materials would be durable and require minimal maintenance.
While the home’s location posed no major site challenges, sustainability was a key concern. The team upgraded the roof insulation, installed solar panels with battery storage, and added ductless mini-split cooling systems. Lighting was another area where modern technology was woven into a historic framework: new square LED fixtures echo the original custom perimeter soffit lights, maintaining the design language while offering advanced performance.
A planned expansion of a bedroom into suite with a bathroom had to be shelved due to budget constraints and the high cost of below-grade foundation work. Still, the team focused their efforts on making the most of the existing footprint, resolving constraints through design ingenuity rather than adding square footage. This renovation represents a collaborative achievement in preserving and evolving a historically significant home. Every decision was shaped by a shared ethos among clients, architects, and contractor: to maintain the home’s architectural soul while updating it for contemporary life. The result is a timeless modernist residence that continues Olof Dahlstrand’s legacy, remaining grounded in nature, craftsmanship, and human-scale design.
Klopf Architecture Team: John Klopf, AIA, Klara Kevane, Fernanda Bernardes
Interior Architectural Design: Klopf Architecture
Structural Engineer: Daniel Bastiao
Contractor: Don Larwood, Larwood Construction
Photography: Mariko Reed
Year Completed: 2022
NanaWallNestled in the lush landscape, a modern reinterpretation of a once-fallen barn now features a charming guest cottage with stylish details and contemporary amenities. Situated along a narrow lot in Germantown, New York, the cottage completes a cluster of existing buildings, forming an intimate courtyard on one side. Steel effect folding patio doors fully open the living areas to the expansive fields and the Catskill Mountains beyond.
The homeowners, a young family with parents living abroad, envisioned a cozy yet modern ADU for extended stays. Designed by Lauren Cawse, AIA, architect and partner at The Art of Building, the year-round retreat draws inspiration from traditional local barns while embracing a seamless indoor-outdoor connection.
Captivating Guest Cottage Design Enhances the Senses with Steel Effect Folding Patio Doors
The modern ADU design started with the site itself. Positioned between residential and commercial neighbors, the elongated property required a careful balance of privacy and openness. Architect Lauren Cawse approached the layout by redefining the existing house and garage as the east and west sides of an outdoor room, with the new cottage forming its southern boundary. This arrangement created a clear courtyard near the main residence while directing the 800-square-foot guest house toward the open meadow and the distant Catskill Mountains.
“The unique character of the site and its history inspired the architectural direction,” says Cawse. “The intent was to create a secondary structure in the compound in clear contrast to the modern farmhouse style of the house and garage.”
A Barn-Inspired Exterior Adds Visual Flair
The exterior envelope evokes a traditional barn with a simple gable shape, weathered wood siding, cedar shingles, and a foundation veneer made of local fieldstone. A large sliding barn door adds a complementary feature to the courtyard-facing side, creating a dynamic opening that maintains uninterrupted views through the cottage to the meadow beyond.
Steel effect folding patio doors surrounding the structure add a modern touch of transparency, and simulated divided lites allow the contemporary glass wall systems to harmonize with the traditional elements of the modern ADU design.
“The goal was to fully open the living areas to the outdoors, framing views to the meadows and mountains,” says Cawse. “The positioning of the NanaWall systems frames the views and, when open, dissolves the boundary between inside and out.”
Interior Design That Mirrors Nature’s Tranquility
Inside, the design program features a simple layout with one bedroom, a full bath, a kitchenette, and a living area with a wood-burning stove. The interior, a collaboration between The Art of Building and the homeowners, is defined by an understated palette and tactile materials that reflect the natural setting. Color is introduced through the framed glass views on all sides of the structure. Reclaimed timber collar ties span the ceiling overhead, while stone surfaces and naturally patinated metal accents add quiet texture throughout.
Custom hand-painted Delft tiles along the kitchen backsplash add personal detail, and terra cotta flooring in the bathroom brings warmth and old-world charm. Soaring ceilings and abundant daylight create a peaceful play of light and shadow, shifting subtly with the seasons and emphasizing the cottage’s connection to the natural landscape outside.
Sleek Steel Effect Folding Patio Doors Elevate the Modern ADU Design Aesthetic
Three customized steel effect folding patio doors define the living space, each aligned to respond to a different edge of the site. The largest, spanning nearly 20 feet wide and just under eight feet tall, opens directly onto the stone patio, allowing the main gathering area to extend fully into the landscape. Along the side of the living room, a smaller 10-foot-wide system introduces more light and ventilation, nearly creating an open corner condition if not for the structural post that supports the façade and roofline.
At the rear, a fourth ten-foot-wide system features a French door swing panel configuration that opens toward the courtyard, strengthening the design connection to the main residence. All steel effect folding patio doors were specified with a low-maintenance, water-rated Performance Sill to safeguard against inclement weather while providing a seamless, barrier-free transition to the outdoor patio.
Unique Customizations for Visual Appeal and a Steel Effect
Each folding patio door system is configured to open outward, maximizing usable floor space in the compact interior and allowing furniture placement to remain uninterrupted. By stacking outward, the steel effect folding patio doors, specified in a SE Classic Bronze powder coat, ensure every inch of the cottage is optimized. Simulated divided lites create a consistent rhythm across windows and doors, maintaining alignment with the traditional barn-inspired exterior.
In the bedroom, a three-panel, 10-foot-wide system mirrors these customizations, matching the steel effect divided-lite pattern and outward-opening configuration, extending the indoor-outdoor connection while preserving visual continuity throughout the ADU.
“The divided lites were crucial to the architectural vision, and while budget prohibited a steel and glass system, NanaWall Systems’ thin frames provide the open and airy feeling we hoped to attain,” says Cawse. “Simulated divided lites transition the thoroughly modern element of the glass walls to remain in harmony with the otherwise traditional palette.”
Matching Windows and Doors: Create a Cohesive Design Program
Alongside the larger openings in the living areas and bedroom, a smaller 3-foot-tall NanaWall tilt turn window was added to the bathroom. This window-sized NanaWall system perfectly matches the divided lite panels and sleek frames of the steel effect folding patio doors, creating a cohesive modern ADU design throughout. The compact opening provides ventilation and natural light, enhancing the spa-like atmosphere along with natural stone flooring. The matching glass lines and sleek profiles of the NanaWall Generation 4 comprehensive product line further unify visual consistency, allowing each system to fit into the architectural style seamlessly.
“This project had three bifold glass walls, a pair of double French doors with sidelites, and a single tilt turn window,” says architect Lauren Cawse. “Being able to work with a single manufacturer provided aesthetic cohesiveness and simplified coordination.”
Sustainability Where It Matters Most
New York weather can vary from hot 85-degree summers to cold 26-degree winters. Creating an efficient living space was a primary goal. To achieve this, the design included Timber HP-insulated walls and floors with a heat pump system for effective heating and cooling. Additionally, the steel effect folding patio doors and windows were specified with double-glazed panels to ensure a tight building envelope.
Indoor-Outdoor Living Spaces for Relaxing and Entertaining
In-house landscape designer Liz Pulver worked closely with the team to conceive open-air spaces that enhanced the connection between inside and outside. To the south end of the lot, the landscape transitions into an “enhanced meadow,” allowing the cottage to feel embedded within the surrounding fields rather than set apart from them. A circular pool was designed to mimic a natural pond with a modest footprint. Around it, a minimalist fence and sunken stone ha-ha wall offer discreet safety for young children.
Limited space due to existing infrastructure and zoning setbacks left only a small footprint for the swimming pool, prompting the designer to propose a circular form that maximized the usable swimming area. “We felt that the perfect way to integrate a pool into the property and to honor the landscape would be to treat the pool as a piece of art itself,” says Pulver. “The result is a beautiful round pool that serves as both a functional retreat and a sculptural moment.”
Final Thoughts: A Barn-Inspired Design for Contemporary Living
This modern ADU design skillfully combines modern features with the enduring charm of traditional barns. The outcome is a welcoming living space that stands out amid a stunning landscape. Natural materials that mimic the beauty of the outdoors, expansive steel effect folding patio doors that fill the space with fresh air and natural light, and a restrained interior design work together to create an inviting retreat for everyday living, throughout the seasons.
“When entering the site, the cottage feels as though it was always there,” says Cawse. “It achieves its two opposing goals by creating a feeling of intimacy and enclosure near the house while also functioning as a threshold to the expansive fields and views beyond.”
Explore how NanaWall folding patio doors elevate other ADU spaces in our inspiring project photo gallery!
Frequently Asked Questions (FAQs)
What is Slimline Steel Effect?
Steel Effect is a folding patio door design option that replicates the appearance of traditional steel-framed glass doors. It combines the look of steel with the performance benefits of aluminum, including energy efficiency, low maintenance, greater design flexibility, and lower cost.
How does a NanaWall Steel Effect aluminum system compare to traditional steel-framed glass doors?
NanaWall Slimline Steel Effect folding patio doors replicate the narrow frames of traditional steel doors with improved weather and thermal performance and easier operation. They are lighter, more corrosion-resistant, and feature a thermally broken design for better energy efficiency and lower long-term maintenance.
What are the benefits of Steel Effect folding glass walls?
Steel Effect folding glass walls deliver the narrow sightlines and grid patterns of traditional steel, combined with the performance and low maintenance of aluminum. The slimline steel effect option offers all the benefits of our Generation 4 product line, including the FourFold / SixFold floating panel set option and smooth operation with Gothic arch stainless steel rollers on a stainless steel track.
Can Slimline Steel Effect glass walls be customized?
Yes, these systems offer a high level of customization to suit different architectural styles, including simulated divided lites specified in various patterns, popular SE colors for a true steel effect look, and a contemporary glass stop option for a refined look. Contact your local NanaWall representative for additional options here.
How energy-efficient and weather-resistant are Slimline Steel Effect folding patio doors?
Steel effect folding systems are engineered for strong thermal and weather performance. Thermally broken frames and high-performance glazing help improve energy efficiency. Each NanaWall system has been independently tested for air, water, structural integrity, and forced entry with excellent results.
Klopf ArchitectureNestled in the hills of Orinda, California, this 1951 residence is one of only seven extant homes, now known as “The Magnificent Seven”, designed by architect Olof Dahlstrand, a protégé of Frank Lloyd Wright. With its low-slung rooflines, natural materials, and deep integration with the sloping landscape, the home is a pristine example of mid-century modern design inspired by Wright’s organic principles. Over the years, prior homeowners have emphasized preservation, ensuring that the house remained relatively untouched. Each owner has respected the original architecture and stayed true to Dahlstrand’s intent. When a family of five—two college-aged sons and a middle school-aged daughter—acquired the property, they were captivated by its history, legacy of care, and architectural significance. While they appreciated Dahlstrand’s original vision, they also recognized the need to adapt the home for contemporary living while preserving its design integrity.
The remodel was conceived as a thoughtful response to the past—an effort to bring the house into the 21st century without compromising its soul. The primary mandate was to maintain architectural continuity while improving the functionality, comfort, and livability for a modern family. The design team—architects and contractor alike—worked with a shared reverence for the original architecture, allowing that mindset to guide even the most technical or pragmatic decisions.
A key objective was to increase natural light in the kitchen—a departure from Wrightian principles of enclosed, intimate cooking spaces—while maintaining the home’s architectural language. The kitchen was reconfigured to foster a stronger connection to adjacent living spaces while retaining the underlying concept of spatial separation. One of the most transformative architectural changes was the removal of a ridge beam that was originally planned to remain visible through the kitchen. During construction, the team collaborated on a better solution: a wide-flanged steel beam concealed within the roof envelope. This subtle move preserved the clean lines and ceiling continuity, a modern update carried out with utmost respect for the existing framework.
The home’s original powder room, previously accessible only through the kitchen, was relocated for better flow and privacy. A new powder room was carved out of former kitchen cabinetry—a narrow, interior space that could have felt dark and enclosed. To avoid this, the design extended the line of original transom windows into the new powder room and added a skylight above the vanity. The result is a bright and airy space that feels consistent with the rest of the home. Other updates included the installation of new solid-core interior doors with veneers carefully matched to the original mahogany, enhancing the continuity of the interiors. Even smaller decisions, such as placing the door knobs at 42 inches high, mirrored the original proportions. Every choice reflected a shared belief between the architect, contractor, and client: that new work should serve the integrity of the old.
The home’s extensive interior redwood millwork and paneling was meticulously restored. Where new materials were introduced—such as the replacement redwood soffit paneling—the contractor took pains to find finish nails that matched the original, rather than using modern equivalents. This level of craftsmanship and collaboration defined the project. It extended even to the detailing of a blind door to the new powder room, which had to disappear into the existing redwood board-and-batten wall. It was a team effort: the owner found a suitable handle, the architects devised the custom in-swing mechanism, and the contractor executed it so the door aligned precisely with the battens. Throughout, the homeowners were deeply engaged in the design process. One, a meticulous design enthusiast, focused on aesthetic integrity and historic detail. The other brought a practical and function-driven perspective, ensuring that new fixtures and materials would be durable and require minimal maintenance.
While the home’s location posed no major site challenges, sustainability was a key concern. The team upgraded the roof insulation, installed solar panels with battery storage, and added ductless mini-split cooling systems. Lighting was another area where modern technology was woven into a historic framework: new square LED fixtures echo the original custom perimeter soffit lights, maintaining the design language while offering advanced performance.
A planned expansion of a bedroom into suite with a bathroom had to be shelved due to budget constraints and the high cost of below-grade foundation work. Still, the team focused their efforts on making the most of the existing footprint, resolving constraints through design ingenuity rather than adding square footage. This renovation represents a collaborative achievement in preserving and evolving a historically significant home. Every decision was shaped by a shared ethos among clients, architects, and contractor: to maintain the home’s architectural soul while updating it for contemporary life. The result is a timeless modernist residence that continues Olof Dahlstrand’s legacy, remaining grounded in nature, craftsmanship, and human-scale design.
Klopf Architecture Team: John Klopf, AIA, Klara Kevane, Fernanda Bernardes
Interior Architectural Design: Klopf Architecture
Structural Engineer: Daniel Bastiao
Contractor: Don Larwood, Larwood Construction
Photography: Mariko Reed
Year Completed: 2022
Klopf ArchitectureNestled in the hills of Orinda, California, this 1951 residence is one of only seven extant homes, now known as “The Magnificent Seven”, designed by architect Olof Dahlstrand, a protégé of Frank Lloyd Wright. With its low-slung rooflines, natural materials, and deep integration with the sloping landscape, the home is a pristine example of mid-century modern design inspired by Wright’s organic principles. Over the years, prior homeowners have emphasized preservation, ensuring that the house remained relatively untouched. Each owner has respected the original architecture and stayed true to Dahlstrand’s intent. When a family of five—two college-aged sons and a middle school-aged daughter—acquired the property, they were captivated by its history, legacy of care, and architectural significance. While they appreciated Dahlstrand’s original vision, they also recognized the need to adapt the home for contemporary living while preserving its design integrity.
The remodel was conceived as a thoughtful response to the past—an effort to bring the house into the 21st century without compromising its soul. The primary mandate was to maintain architectural continuity while improving the functionality, comfort, and livability for a modern family. The design team—architects and contractor alike—worked with a shared reverence for the original architecture, allowing that mindset to guide even the most technical or pragmatic decisions.
A key objective was to increase natural light in the kitchen—a departure from Wrightian principles of enclosed, intimate cooking spaces—while maintaining the home’s architectural language. The kitchen was reconfigured to foster a stronger connection to adjacent living spaces while retaining the underlying concept of spatial separation. One of the most transformative architectural changes was the removal of a ridge beam that was originally planned to remain visible through the kitchen. During construction, the team collaborated on a better solution: a wide-flanged steel beam concealed within the roof envelope. This subtle move preserved the clean lines and ceiling continuity, a modern update carried out with utmost respect for the existing framework.
The home’s original powder room, previously accessible only through the kitchen, was relocated for better flow and privacy. A new powder room was carved out of former kitchen cabinetry—a narrow, interior space that could have felt dark and enclosed. To avoid this, the design extended the line of original transom windows into the new powder room and added a skylight above the vanity. The result is a bright and airy space that feels consistent with the rest of the home. Other updates included the installation of new solid-core interior doors with veneers carefully matched to the original mahogany, enhancing the continuity of the interiors. Even smaller decisions, such as placing the door knobs at 42 inches high, mirrored the original proportions. Every choice reflected a shared belief between the architect, contractor, and client: that new work should serve the integrity of the old.
The home’s extensive interior redwood millwork and paneling was meticulously restored. Where new materials were introduced—such as the replacement redwood soffit paneling—the contractor took pains to find finish nails that matched the original, rather than using modern equivalents. This level of craftsmanship and collaboration defined the project. It extended even to the detailing of a blind door to the new powder room, which had to disappear into the existing redwood board-and-batten wall. It was a team effort: the owner found a suitable handle, the architects devised the custom in-swing mechanism, and the contractor executed it so the door aligned precisely with the battens. Throughout, the homeowners were deeply engaged in the design process. One, a meticulous design enthusiast, focused on aesthetic integrity and historic detail. The other brought a practical and function-driven perspective, ensuring that new fixtures and materials would be durable and require minimal maintenance.
While the home’s location posed no major site challenges, sustainability was a key concern. The team upgraded the roof insulation, installed solar panels with battery storage, and added ductless mini-split cooling systems. Lighting was another area where modern technology was woven into a historic framework: new square LED fixtures echo the original custom perimeter soffit lights, maintaining the design language while offering advanced performance.
A planned expansion of a bedroom into suite with a bathroom had to be shelved due to budget constraints and the high cost of below-grade foundation work. Still, the team focused their efforts on making the most of the existing footprint, resolving constraints through design ingenuity rather than adding square footage. This renovation represents a collaborative achievement in preserving and evolving a historically significant home. Every decision was shaped by a shared ethos among clients, architects, and contractor: to maintain the home’s architectural soul while updating it for contemporary life. The result is a timeless modernist residence that continues Olof Dahlstrand’s legacy, remaining grounded in nature, craftsmanship, and human-scale design.
Klopf Architecture Team: John Klopf, AIA, Klara Kevane, Fernanda Bernardes
Interior Architectural Design: Klopf Architecture
Structural Engineer: Daniel Bastiao
Contractor: Don Larwood, Larwood Construction
Photography: Mariko Reed
Year Completed: 2022
Klopf ArchitectureNestled in the hills of Orinda, California, this 1951 residence is one of only seven extant homes, now known as “The Magnificent Seven”, designed by architect Olof Dahlstrand, a protégé of Frank Lloyd Wright. With its low-slung rooflines, natural materials, and deep integration with the sloping landscape, the home is a pristine example of mid-century modern design inspired by Wright’s organic principles. Over the years, prior homeowners have emphasized preservation, ensuring that the house remained relatively untouched. Each owner has respected the original architecture and stayed true to Dahlstrand’s intent. When a family of five—two college-aged sons and a middle school-aged daughter—acquired the property, they were captivated by its history, legacy of care, and architectural significance. While they appreciated Dahlstrand’s original vision, they also recognized the need to adapt the home for contemporary living while preserving its design integrity.
The remodel was conceived as a thoughtful response to the past—an effort to bring the house into the 21st century without compromising its soul. The primary mandate was to maintain architectural continuity while improving the functionality, comfort, and livability for a modern family. The design team—architects and contractor alike—worked with a shared reverence for the original architecture, allowing that mindset to guide even the most technical or pragmatic decisions.
A key objective was to increase natural light in the kitchen—a departure from Wrightian principles of enclosed, intimate cooking spaces—while maintaining the home’s architectural language. The kitchen was reconfigured to foster a stronger connection to adjacent living spaces while retaining the underlying concept of spatial separation. One of the most transformative architectural changes was the removal of a ridge beam that was originally planned to remain visible through the kitchen. During construction, the team collaborated on a better solution: a wide-flanged steel beam concealed within the roof envelope. This subtle move preserved the clean lines and ceiling continuity, a modern update carried out with utmost respect for the existing framework.
The home’s original powder room, previously accessible only through the kitchen, was relocated for better flow and privacy. A new powder room was carved out of former kitchen cabinetry—a narrow, interior space that could have felt dark and enclosed. To avoid this, the design extended the line of original transom windows into the new powder room and added a skylight above the vanity. The result is a bright and airy space that feels consistent with the rest of the home. Other updates included the installation of new solid-core interior doors with veneers carefully matched to the original mahogany, enhancing the continuity of the interiors. Even smaller decisions, such as placing the door knobs at 42 inches high, mirrored the original proportions. Every choice reflected a shared belief between the architect, contractor, and client: that new work should serve the integrity of the old.
The home’s extensive interior redwood millwork and paneling was meticulously restored. Where new materials were introduced—such as the replacement redwood soffit paneling—the contractor took pains to find finish nails that matched the original, rather than using modern equivalents. This level of craftsmanship and collaboration defined the project. It extended even to the detailing of a blind door to the new powder room, which had to disappear into the existing redwood board-and-batten wall. It was a team effort: the owner found a suitable handle, the architects devised the custom in-swing mechanism, and the contractor executed it so the door aligned precisely with the battens. Throughout, the homeowners were deeply engaged in the design process. One, a meticulous design enthusiast, focused on aesthetic integrity and historic detail. The other brought a practical and function-driven perspective, ensuring that new fixtures and materials would be durable and require minimal maintenance.
While the home’s location posed no major site challenges, sustainability was a key concern. The team upgraded the roof insulation, installed solar panels with battery storage, and added ductless mini-split cooling systems. Lighting was another area where modern technology was woven into a historic framework: new square LED fixtures echo the original custom perimeter soffit lights, maintaining the design language while offering advanced performance.
A planned expansion of a bedroom into suite with a bathroom had to be shelved due to budget constraints and the high cost of below-grade foundation work. Still, the team focused their efforts on making the most of the existing footprint, resolving constraints through design ingenuity rather than adding square footage. This renovation represents a collaborative achievement in preserving and evolving a historically significant home. Every decision was shaped by a shared ethos among clients, architects, and contractor: to maintain the home’s architectural soul while updating it for contemporary life. The result is a timeless modernist residence that continues Olof Dahlstrand’s legacy, remaining grounded in nature, craftsmanship, and human-scale design.
Klopf Architecture Team: John Klopf, AIA, Klara Kevane, Fernanda Bernardes
Interior Architectural Design: Klopf Architecture
Structural Engineer: Daniel Bastiao
Contractor: Don Larwood, Larwood Construction
Photography: Mariko Reed
Year Completed: 2022
JCpA Group llc100% of the structure built by JCpA Group LLC
Our team handled all structural wood framing for this modern custom home, including load-bearing walls, floor systems, and roof framing. A solid and accurate structure that allowed finishing teams to perform their work with confidence.
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