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Look how clean and visually quiet this kitchen can be. There was so little exposed wall left after the cabinetry went in that we didn't overthink using black on the walls. Of course it doesn't "make the room dark". This room has ample light to begin with and at night, a fantastic city lights view is out those doors, so it's as if the walls recede.

Nestled 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.

When the Owners approached Goggans Architecture about renovation of a 90’s era oceanfront house, it was clear there would be a lot more to the renovation than mere updates and remedying deferred maintenance. One of the most significant issues was how to integrate an outdoor pool given the pool had to be within the building envelope, and the house was already abutting the setback on its ocean side. A second significant challenge was how to provide a roof top deck over a pitched roof house with an attic, that was functional and attractive. Finally, creating better access from the parking area to the kitchen was a priority.
Goggans Architecture addressed the placement of a pool by creating a walled courtyard at the front, or landward side, of the house. The pool was placed on one side of the entry walkway, while its composition was balanced by a parterre garden on the other side of the walkway. The roof top deck was resolved by adding a new staircase and passageway through former attic space. By using a motorized roof hatch, the Owners could ascend to the roof deck which perched just below the roof ridge, hidden from view from the street. Relocating an underneath stair from one side of the house to a point that was closer to the kitchen resolved the access issue.
These strategic moves created other opportunities, such as expansion of the master bathroom to a portion of the front porch, while allowing an exterior stair from the bath directly to the pool. Other enhancements included placement of a large folding door in the Great room, renovation and expansion of the kitchen and exterior decks, reorganization, and replacement of the fenestration, updating all baths and interior and exterior finishes.
The extensive renovation reflects the holistic approach of Goggans Architecture, marrying landscape architecture, architecture, and interiors.

What began as a renovation project morphed into a new house, driven by the natural beauty of the site.
The new structures are perfectly aligned with the coastline, and take full advantage of the views of ocean, islands, and shoals. The location is within walking distance of town and its amenities, yet miles away in the privacy it affords. The house is nestled on a nicely wooded lot, giving the residence screening from the street, with an open meadow leading to the ocean on the rear of the lot.
The design concept was driven by the serenity of the site, enhanced by textures of trees, plantings, sand and shoreline. The newly constructed house sits quietly in a location advantageously positioned to take full advantage of natural light and solar orientations. The visual calm is enhanced by the natural material: stone, wood, and metal throughout the home.
The main structures are comprised of traditional New England forms, with modern connectors serving to unify the structures. Each building is equally suited for single floor living, if that future needs is ever necessary. Unique too is an underground connection between main house and an outbuilding.
With their flowing connections, no room is isolated or ignored; instead each reflects a different level of privacy and social interaction.
Just as there are layers to the exterior in beach, field, forest and oceans, the inside has a layered approach. Textures in wood, stone, and neutral colors combine with the warmth of linens, wools, and metals. Personality and character of the interiors and its furnishings are tailored to the client’s lifestyle. Rooms are arranged and organized in an intersection of public and private spaces. The quiet palette within reflects the nature outside, enhanced with artwork and accessories.

Nursery Remodel Los Angeles, CA
Photographer: Casey Hale
Mid-sized trendy gender-neutral nursery photo in Los Angeles with blue walls
Mid-sized trendy gender-neutral nursery photo in Los Angeles with blue walls

Powder Room. Photo by Clark Dugger
Example of a small trendy medium tone wood floor and brown floor powder room design in Los Angeles with a wall-mount sink, white walls and a two-piece toilet
Example of a small trendy medium tone wood floor and brown floor powder room design in Los Angeles with a wall-mount sink, white walls and a two-piece toilet

Nestled 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.

We transformed a dated 1970s home on Aspen's iconic Red Mountain into a modern, timeless retreat. This redesign preserved its mid-century charm while enhancing functionality, comfort, and breathtaking views.
This expansive deck features a cozy firepit and ample seating, making it an ideal space for hosting and gatherings.

What began as a renovation project morphed into a new house, driven by the natural beauty of the site.
The new structures are perfectly aligned with the coastline, and take full advantage of the views of ocean, islands, and shoals. The location is within walking distance of town and its amenities, yet miles away in the privacy it affords. The house is nestled on a nicely wooded lot, giving the residence screening from the street, with an open meadow leading to the ocean on the rear of the lot.
The design concept was driven by the serenity of the site, enhanced by textures of trees, plantings, sand and shoreline. The newly constructed house sits quietly in a location advantageously positioned to take full advantage of natural light and solar orientations. The visual calm is enhanced by the natural material: stone, wood, and metal throughout the home.
The main structures are comprised of traditional New England forms, with modern connectors serving to unify the structures. Each building is equally suited for single floor living, if that future needs is ever necessary. Unique too is an underground connection between main house and an outbuilding.
With their flowing connections, no room is isolated or ignored; instead each reflects a different level of privacy and social interaction.
Just as there are layers to the exterior in beach, field, forest and oceans, the inside has a layered approach. Textures in wood, stone, and neutral colors combine with the warmth of linens, wools, and metals. Personality and character of the interiors and its furnishings are tailored to the client’s lifestyle. Rooms are arranged and organized in an intersection of public and private spaces. The quiet palette within reflects the nature outside, enhanced with artwork and accessories.

Photography by Michael J. Lee
Powder room - mid-sized transitional beige tile and matchstick tile marble floor powder room idea in Boston with a one-piece toilet, an integrated sink and concrete countertops
Powder room - mid-sized transitional beige tile and matchstick tile marble floor powder room idea in Boston with a one-piece toilet, an integrated sink and concrete countertops

Set in a quiet neighborhood and framed by mature trees, this residence presented a unique opportunity: to thoughtfully evolve a custom mid-century modern home into a space that supports the everyday rhythms of a growing family. With a deep respect for the home’s original architecture, Klopf Architecture reimagined the house to better meet the needs of its owners—introducing functional improvements while preserving the spirit and character of its mid-century roots.
The clients approached Klopf Architecture with a clear vision: refresh their home while seamlessly integrating new programmatic elements. Key goals included clarifying and enhancing the entry sequence; connecting the detached garage to the main house with a practical yet architecturally intentional intervention; adding functional spaces such as a mudroom and laundry room; expanding and remodeling the primary suite’s bathroom and closet; and creating a more engaging outdoor space that capitalized on the site’s impressive views, featuring a fire pit and outdoor kitchen.
As a couple with distinct yet complementary perspectives—one focused on modern functionality and technology, and the other dedicated to preserving the home’s architectural integrity—their collaboration with Klopf Architecture resulted in a solution that harmonized both ideals. Their shared commitment to improving the livability of their home led to a design dialogue rooted in balance. This dynamic partnership shaped the direction of the renovation, ensuring that every decision honored the spirit of the original home while aligning with the practical needs of their growing family.
Designing within the constraints of the sloped site posed one of the project’s central challenges. The detached garage sat at a higher elevation than the main house, requiring a solution that ensured architectural and geometric compatibility between the two structures. Rather than create a purely utilitarian link, Klopf Architecture introduced an intentional connection that contributes to the overall architectural language. A notable pinch point in the plan—where differing geometries converged—was treated as a hinge point, turning a potentially awkward juncture into an architectural feature. This area now functions as both a transition and a moment of design interest that unifies the overall plan.
The design also addressed the underutilized outdoor area, which was located in a shadowed portion of the site with geometrical limitations. A new connection to the rear deck was created in this same area, making the outdoor space more useful and inviting. Klopf Architecture introduced carefully positioned openings and spatial improvements that forged a strong visual and functional connection between indoor and outdoor spaces. The outdoor area now reads as a deliberate extension of the home, embracing natural light and emphasizing the dramatic views.
Working through multiple design iterations, Klopf Architecture crafted a solution that preserved the architectural language of the original home while supporting the functional needs of modern life. The garage-to-house connection became more than a passage—it evolved into an architectural moment of transition. A new mudroom and laundry space enhanced convenience without compromising the clean lines of the design. The primary suite was expanded to create a private, serene retreat. The reimagined backyard, complete with fire pit and kitchen, now plays a vital role in the family’s daily routine and social life.
Outcomes and Lasting Impact
The result is a home that balances heritage with contemporary design, technical precision with design sensibility. The redesign not only met the clients’ initial goals but also exceeded expectations in its ability to seamlessly blend past and present, function and beauty, making the outdoor kitchen a favorite gathering place.
Beyond aesthetics, the renovation has significantly improved daily life for the family. The newly integrated garage connection has streamlined routines, providing a seamless transition between arriving home, storing belongings, and entering the main living spaces. The expanded primary suite offers a retreat-like atmosphere, creating a private space to unwind at the end of the day. The redesigned outdoor areas have also become an extension of their lifestyle—whether it's casual family dinners around the fire pit, entertaining friends in the outdoor kitchen, or simply enjoying the view from the reimagined backyard.
Through a thoughtful and strategic approach, the house has been successfully evolved into a home that remains true to its mid-century modern roots while enhancing livability, functionality, and the overall quality of life for the modern-day owners.
Klopf Architecture Team: Geoffrey Campen, Fernanda Bernardes
Architectural Interior Design: Klopf Architecture
Structural Engineer: Base Design Inc.
Contractor: Golden Snail Builders
Photography: Mariko Reed
Year Completed:2022

Nestled 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.

This semi-custom kitchen remodel blends timeless style with thoughtful functionality. Frosty White CRP-10 cabinetry sets a clean, classic tone, enhanced by applied panels that add depth and a refined, cohesive finish. A richly stained cherry island with a large farmhouse-style sink brings warmth and character, creating a striking yet balanced contrast.

total powder room remodel
Mountain style beige tile and ceramic tile dark wood floor and brown floor powder room photo in Denver with dark wood cabinets, a two-piece toilet, orange walls, an undermount sink, quartz countertops and brown countertops
Mountain style beige tile and ceramic tile dark wood floor and brown floor powder room photo in Denver with dark wood cabinets, a two-piece toilet, orange walls, an undermount sink, quartz countertops and brown countertops

transFORM’s custom designed wall beds provide comfort, convenience and charm without sacrificing valuable floor space. This multifunctional unit was made with White High Gloss and complementing Latte and Light Driftwood finishes. Tastefully accented with large handle, chrome finished hardware and paired with a pop of color, this neutral combination proves to be anything but dull.
Convenience and functionality play a big role in the design of this unit. A wall bed is a perfect addition to any spot that doubles as a guest room or has a limited amount of floor space. Converting your wall bed is a stress-free operation that requires very little effort. In just a few seconds you can unfold this convenient bed into instant sleeping arrangements, complete with a comfortable standard-size mattress. Our convertible design makes it simple to fold out the bed and tuck it back away when not in use.
This dual-purpose unit was designed with tons of cabinetry and shelving for extra storage. With two large cabinets, you can easily hang a long skirt with enough room underneath to store your favorite footwear. Front to back pull-out hanging rods provide ample hanging space in a shallow cabinet. Visualizing your available clothing options face on will cut down the time it takes to mix and match the perfect ensemble.
This design also includes plenty of deep drawer storage, which can be a useful place for storing spare linens. Top shelves are a perfect way to personalize your room with mementos, collectibles and home décor. Open shelving offers a substantial amount of depth, allowing you to display your exclusive handbags. Conveniently kept in the lower cabinet is a hide away ironing board. The drawer mounted ironing board slides out when needed and easily folds up when not in use. It also rotates, which gives you the freedom to position it where you feel most comfortable. Having necessities readily available can make tedious house chores a little more enjoyable.
This design is completed with integrated LED lighting. Positioned by the bed, touch dimmable LED’s provide mood lighting for your living space. Within the open shelving, recessed LED lights enhance the look of the unit while showcasing your displayed possessions. Our lighting systems offer features such as touch switches and dimmers, which allow you to set the right scene and feel at ease and relaxed at home.
Photography by Ken Stabile
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