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.

Ulrich Designer: Tom Santarsiero Photography by Peter Rymwid This is a master bath with subtle sophistication and understated elegance. The cabinets were custom designed by Tom, with straight, simple lines, and custom built by Draper DBS of walnut, with a deep, rich brown finish. The richness of the dark cabinetry juxtaposed with the elegance of the white carrara marble on the countertop, wall and floors contributes to the room's sophistication. Ample storage is found in the large vanity and an armoire style cabinet, designed to mimic a free-standing furniture piece, that is positioned behind the door. Architectural beams placed across the vaulted ceiling bring a sense of scale to the room and invite natural light in through the skylight.

The free standing DXV Lyndon soaking tub with Grohe Grandera floor mounted tub filler make for a elegant pairing. The wave patterned tile and wall sconces mimic the water view beyond while the floating shelves either end provide a landing space for the bather's wine glass as well as decorative elements for personal expression. Photo by WestSound Home & Garden magazine

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.

The homeowners wanted their upstairs master bath to have a spa-like feel so we used a porcelain tile that mimics the look of wooden white marble to create a warm and calming atmosphere. By taking the wall tile all the way up to the almost 9’ ceilings, the bathroom feels larger than it actually is. The frameless shower enclosure adds to the feeling of openness as does having a storage ledge rather than a niche. Stacy Zarin Goldberg Photography

Pictured here is a closeup of the microwave and island storage which includes 4 pantry drawers, under cabinet microwave, drawers for pots and pans easily located near the cooktop and drawers for kitchen supplies, napkins, and other items. The kitchen was originally planned to mimic the location of appliances in her current kitchen to minimize re-learning of appliance locations. The only change was adding a trash cabinet between the fridge and the sink. A french door fridge allows someone in a wheelchair to easily access frozen and cold foods, while the water and ice dispenser on the outside of the door make it easy to stay hydrated rather than using the sink each time. She can roll up to the kitchen sink due to the recessed cabinetry under the sink or stand at counter height to put away dishes from the dishwasher. The dishwasher is ADA and very simple to use , and is raised off the floor so whether she is sitting or standing it's easier to reach. The gas cooktop has controls at the front making it easy to reach from the wheelchair and the exhaust fan above also has a control at the front. All cabinet door handles are D-shape, which makes them easy to grasp and there is plenty of electric outlets for charging phones, computers and small appliances. The kitchen island is table height at 30" so meal prep can be easily done in a wheelchair while guests and can be seated in a chair or wheelchair around the island. The dining chairs can also be turned around to add extra seating in the living room area. Pendant lights above the kitchen island light up the space, while recessed lighting in the kitchen and living room provide overall room lighting. There is also under cabinet lighting which makes the room glow at night! Wainscoting made of commercial grade material is strategically placed on sharp corners and exposed walls to reduce and minimize damage from the wheel chair, while creating a finished and complete look! We selected a free standing microwave to sit below the island, which is easy to use and is the same style as in her previous apartment. The island is 48" from the appliance wall, leaving ample space to open doors and maneuver around in the wheelchair and has easy access to the laundry area as well. We eliminated the pocket doors that had been in front of the laundry area for easy access, and since it was exposed, dressed it up with coordinating tile to the kitchen with additional cabinets above. There is a coordinating quartz counter on top of the washer and dryer for folding laundry or storing additional supplies.

Ulrich Designer: Tom Santarsiero Photography by Peter Rymwid This is a master bath with subtle sophistication and understated elegance. The cabinets were custom designed by Tom, with straight, simple lines, and custom built by Draper DBS of walnut, with a deep, rich brown finish. The richness of the dark cabinetry juxtaposed with the elegance of the white carrara marble on the countertop, wall and floors contributes to the room's sophistication. Ample storage is found in the large vanity and an armoire style cabinet, designed to mimic a free-standing furniture piece, that is positioned behind the door. Architectural beams placed across the vaulted ceiling bring a sense of scale to the room and invite natural light in through the skylight.

The kitchen was originally planned to mimic the location of appliances in her current kitchen to minimize re-learning of appliance locations. The only change was adding a trash cabinet between the fridge and the sink. A french door fridge allows someone in a wheelchair to easily access frozen and cold foods, while the water and ice dispenser on the outside of the door make it easy to stay hydrated rather than using the sink each time. She can roll up to the kitchen sink due to the recessed cabinetry under the sink or stand at counter height to put away dishes from the dishwasher. The dishwasher is ADA and very simple to use , and is raised off the floor so whether she is sitting or standing it's easier to reach. The gas cooktop has controls at the front making it easy to reach from the wheelchair and the exhaust fan above also has a control at the front. All cabinet door handles are D-shape, which makes them easy to grasp and there is plenty of electric outlets for charging phones, computers and small appliances. The kitchen island is table height at 30" so meal prep can be easily done in a wheelchair while guests and can be seated in a chair or wheelchair around the island. The dining chairs can also be turned around to add extra seating in the living room area. Pendant lights above the kitchen island light up the space, while recessed lighting in the kitchen and living room provide overall room lighting. There is also under cabinet lighting which makes the room glow at night! Wainscoting made of commercial grade material is strategically placed on sharp corners and exposed walls to reduce and minimize damage from the wheel chair, while creating a finished and complete look! We selected a free standing microwave to sit below the island, which is easy to use and is the same style as in her previous apartment. The island is 48" from the appliance wall, leaving ample space to open doors and maneuver around in the wheelchair and has easy access to the laundry area as well. We eliminated the pocket doors that had been in front of the laundry area for easy access, and since it was exposed, dressed it up with coordinating tile to the kitchen with additional cabinets above. There is a coordinating quartz counter on top of the washer and dryer for folding laundry or storing additional supplies.

The kitchen was originally planned to mimic the location of appliances in her current kitchen to minimize re-learning of appliance locations. The only change was adding a trash cabinet between the fridge and the sink. A french door fridge allows someone in a wheelchair to easily access frozen and cold foods, while the water and ice dispenser on the outside of the door make it easy to stay hydrated rather than using the sink each time. She can roll up to the kitchen sink or stand at counter height to put away dishes from the dishwasher. The dishwasher is ADA and very simple to use , and is raised off the floor so whether she is sitting or standing it's easier to reach. The gas cooktop has controls at the front making it easy to reach from the wheelchair and the exhaust fan above also has a control at the front. All cabinet door handles are D-shape, which makes them easy to grasp and there is plenty of electric outlets for charging phones, computers and small appliances. The kitchen island is table height at 30" so meal prep can be easily done in a wheelchair while guests and can be seated in a chair or wheelchair around the island. The dining chairs can also be turned around to add extra seating in the living room area. Pendant lights above the kitchen island light up the space, while recessed lighting in the kitchen and living room provide overall room lighting. There is also under cabinet lighting which makes the room glow at night! Wainscoting made of commercial grade material is strategically placed on sharp corners and exposed walls to reduce and minimize damage from the wheel chair, while creating a finished and complete look! We selected a free standing microwave to sit below the island, which is easy to use and is the same style as in her previous apartment. The island is 48" from the appliance wall, leaving ample space to open doors and maneuver around in the wheelchair and has easy access to the laundry area as well. We eliminated the pocket doors that had been in front of the laundry area for easy access, and since it was exposed, dressed it up with coordinating tile to the kitchen with additional cabinets above. There is a coordinating quartz counter on top of the washer and dryer for folding laundry or storing additional supplies.

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.

The full-to-the-ceiling wall mirror, with the light fixtures mounted on the mirror itself, expands and brightens the space. A 1 ½” bevel around the mirror mimics the bevel on the medicine cabinets and is a nice finishing detail.

Inspiration for a mid-sized eclectic u-shaped concrete floor and red floor enclosed kitchen remodel in Toronto with a farmhouse sink, shaker cabinets, medium tone wood cabinets, solid surface countertops, gray backsplash, ceramic backsplash, stainless steel appliances, no island and white countertops

The second story of the home is devoted entirely to the Master Suite, which is a true retreat with double sided fireplace between bed & bath, waterfront views, his & hers walk-in closets, and an large sunning balcony. The master bath is designed to mimic a private spa with a large two person walk-in shower, dual sinks, beverage bar and free standing soaking tub overlooking the water.

The alcove originally went to the ceiling, so I had to build it down first. Alcove height is now the same as other door openings on this floor. Flat screen tv will sit on a stand in the open space. Barn doors have 3/4" plywood panels with V-grooves cut to mimic tongue and groove vertical paneling.

Kerri Torrey Photography
Example of a transitional gray floor dedicated laundry room design in Toronto with an undermount sink, shaker cabinets, white cabinets, gray walls, a side-by-side washer/dryer and white countertops

Example of a large transitional single-wall medium tone wood floor open concept kitchen design in Calgary with an undermount sink, shaker cabinets, metallic backsplash, metal backsplash, stainless steel appliances, an island, white cabinets and solid surface countertops

Will Doyle
Beach style basement photo in Toronto

The kitchen was originally planned to mimic the location of appliances in her current kitchen to minimize re-learning of appliance locations. The only change was adding a trash cabinet between the fridge and the sink. A french door fridge allows someone in a wheelchair to easily access frozen and cold foods, while the water and ice dispenser on the outside of the door make it easy to stay hydrated rather than using the sink each time. She can roll up to the kitchen sink or stand at counter height to put away dishes from the dishwasher. The dishwasher is ADA and very simple to use , and is raised off the floor so whether she is sitting or standing it's easier to reach. The gas cooktop has controls at the front making it easy to reach from the wheelchair and the exhaust fan above also has a control at the front. All cabinet door handles are D-shape, which makes them easy to grasp and there is plenty of electric outlets for charging phones, computers and small appliances. The kitchen island is table height at 30" so meal prep can be easily done in a wheelchair while guests and can be seated in a chair or wheelchair around the island. The dining chairs can also be turned around to add extra seating in the living room area. Pendant lights above the kitchen island light up the space, while recessed lighting in the kitchen and living room provide overall room lighting. There is also under cabinet lighting which makes the room glow at night! Wainscotting made of commercial grade material is strategically placed on sharp corners and exposed walls to reduce and minimize damage from the wheel chair, while creating a finished and complete look!

A waterproof surface, an elegant look and a soft touch… this laminate bathroom flooring has it all. Flooring: Quick-Step Laminate - Impressive 'Classic oak beige' (IM1847)