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Our clients had a very clear vision for what they wanted in a new home and hired our team to help them bring that dream to life. Their goal was to create a contemporary oasis. The main level consists of a courtyard, spa, master suite, kitchen, dining room, living areas, wet bar, large mudroom with ample coat storage, a small outdoor pool off the spa as well as a focal point entry and views of the lake. The second level has four bedrooms, two of which are suites, a third bathroom, a library/common area, outdoor deck and views of the lake, indoor courtyard and live roof. The home also boasts a lower level complete with a movie theater, bathroom, ping-pong/pool area, and home gym. The interior and exterior of the home utilizes clean lines and warm materials. It was such a rewarding experience to help our clients to truly build their dream.
- Jacqueline Southby Photography

This home located in Thiensville, Wisconsin was an original 1950's ranch with three bedrooms and one and one half baths. The remodel consisted of all new finishes throughout with a new kitchen matching the existing kitchen layout. The main bath was completely remodeled with new fixtures and finishes using the existing cabinetry. The original half bath was converted into a full bath by using an adjoining closet for more space. The new bathroom consists of new custom shower, fixtures and cabinets. This project is a good example of how to fix up an outdated house with a low budget.
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Hearthstone Craftsbury in Brown Enamel. Also available in Matte Black and Basil Enamel. Heats up to 1300 sq ft with a heat life of up to 7 hours thanks to the soapstone lined firebox. Single level control makes it easy to operate with great consistence. Embossed cast iron is classically good looking.

This is the front of a home that combines modern lake house design with a number of sustainable best practices to create a stunning and amazingly comfortable low carbon home.
The solar photovoltaic panels are set on the curved roof (not the equal gaps between the tops of the panels). The 9.8 kW PV 35 Panel array provides 32% of the homes energy usage, with the remaining electricity coming from 100% renewable energy credits from the grid.
The energy concept for the home was to be all electric to reduce fracked natural gas usage. Natural gas is only used as a starter for the high efficiency, sealed combustion, outside combustion air fireplace and for a back up generator.
The mechanical system is provided by a series of all electric, ultra high efficiency mini-splits, controlled by an integrated smart home system. An induction cooktop, hybrid electric water heater and hybrid electric dryer complete the items that typically use natural gas. Lighting is all high efficiency correctly colored LED’s.
A home office is included on the second floor complete with a balcony, facing towards the lake. Their zero carbon work commute consists of walking across the 2nd floor hallway.

This is the lakeside of a home that combines modern lake house design with a number of sustainable best practices to create a stunning and amazingly comfortable low carbon home.
To maximize the view out to the lake, a very large segemented window wall was designed that integrated the structure directly into the window mulls to minimize visual obstructions. Skylights on remotes are set above the great room to encourage natural ventilation. Except for the bedrooms and bathrooms, the rooms are all open to one another, again for natural ventilation.
The energy concept for the home was to be all electric to reduce fracked natural gas usage. Natural gas is only used as a starter for the high efficiency, sealed combustion, outside combustion air fireplace and for a back up generator. The 9.8 kW PV 35 Panel array provides 32% of the homes energy usage, with the remaining electricity coming from 100% renewable energy credits from the grid.
The mechanical system is provided by a series of all electric, ultra high efficiency mini-splits, controlled by an integrated smart home system. An induction cooktop, hybrid electric water heater and hybrid electric dryer complete the items that typically use natural gas. Lighting is all high efficiency correctly colored LED’s.
A home office is included on the second floor complete with a balcony, facing towards the lake. Their zero carbon work commute consists of walking across the 2nd floor hallway.

8.5kW System consisting of 34 Black SolarMax SMX250 Solar Panels, 34 Enphase M215 Micro-Inverters, & Matte Black Low Profile Railing.
Photo Credit: Steve Jacobs/Jacobs Media Services

DUETTE ARCHITELLA® HONEYCOMB SHADES
Our state-of-the-art, patented design for these attractive shades incorporates three insulating air pockets to create our most energy efficient product – reducing energy loss up to 50%. Duette Architella® honeycomb shades offer luminous colors and crisp, consistent pleats. Lower them for privacy, or raise completely for maximum light and view – they’re beautiful either way.

This project was such an incredible design opportunity, and instilled inspiration and excitement at every turn! Our amazing clients came to us with the challenge of converting their beloved family home into a welcoming haven for all members of the family. At the time that we met our clients, they were struggling with the difficult personal decision of the fate of the home. Their father/father-in-law had passed away and their mother/mother-in-law had recently been admitted into a nursing facility and was fighting Alzheimer’s. Resistant to loss of the home now that both parents were out of it, our clients purchased the home to keep in in the family. Despite their permanent home currently being in New Jersey, these clients dedicated themselves to keeping and revitalizing the house. We were moved by the story and became immediately passionate about bringing this dream to life.
The home was built by the parents of our clients and was only ever owned by them, making this a truly special space to the family. Our goal was to revitalize the home and to bring new energy into every room without losing the special characteristics that were original to the home when it was built. In this way, we were able to develop a house that maintains its own unique personality while offering a space of welcoming neutrality for all members of the family to enjoy over time.
The renovation touched every part of the home: the exterior, foyer, kitchen, living room, sun room, garage, six bedrooms, three bathrooms, the laundry room, and everything in between. The focus was to develop a style that carried consistently from space to space, but allowed for unique expression in the small details in every room.
Starting at the entry, we renovated the front door and entry point to offer more presence and to bring more of the mid-century vibe to the home’s exterior. We integrated a new modern front door, cedar shingle accents, new exterior paint, and gorgeous contemporary house numbers that really allow the home to stand out. Just inside the entry, we renovated the foyer to create a playful entry point worthy of attention. Cement look tile adorns the foyer floor, and we’ve added new lighting and upgraded the entry coat storage.
Upon entering the home, one will immediately be captivated by the stunning kitchen just off the entry. We transformed this space in just about every way. While the footprint of the home ultimately remained almost identical, the aesthetics were completely turned on their head. We re-worked the kitchen to maximize storage and to create an informal dining area that is great for casual hosting or morning coffee.
We removed the entry to the garage that was once in the informal dining, and created a peninsula in its place that offers a unique division between the kitchen/informal dining and the formal dining and living areas. The simple light warm light gray cabinetry offers a bit of traditional elegance, along with the marble backsplash and quartz countertops. We extended the original wood flooring into the kitchen and stained all floors to match for a warmth that truly resonates through all spaces. We upgraded appliances, added lighting everywhere, and finished the space with some gorgeous mid century furniture pieces.
In the formal dining and living room, we really focused on maintaining the original marble fireplace as a focal point. We cleaned the marble, repaired the mortar, and refinished the original fireplace screen to give a new sleek look in black. We then integrated a new gas insert for modern heating and painted the upper portion in a rich navy blue; an accent that is carried through the home consistently as a nod to our client’s love of the color.
The former entry into the old covered porch is now an elegant glass door leading to a stunning finished sunroom. This room was completely upgraded as well. We wrapped the entire space in cozy white shiplap to keep a casual feel with brightness. We tiled the floor with large format concrete look tile, and painted the old brick fireplace a bright white. We installed a new gas burning unit, and integrated transitional style lighting to bring warmth and elegance into the space. The new black-frame windows are adorned with decorative shades that feature hand-sketched bird prints, and we’ve created a dedicated garden-ware “nook” for our client who loves to work in the yard. The far end of this space is completed with two oversized chaise loungers and overhead lights…the most perfect little reading nook!
Just off the dining room, we created an entirely new space to the home: a mudroom. The clients lacked this space and desperately needed a landing spot upon entering the home from the garage. We uniquely planned existing space in the garage to utilize for this purpose, and were able to create a small but functional entry point without losing the ability to park cars in the garage. This new space features cement-look tile, gorgeous deep brown cabinetry, and plenty of storage for all the small items one might need to store while moving in and out of the home.
The remainder of the upstairs level includes massive renovations to the guest hall bathroom and guest bedroom, upstairs master bed/bath suite, and a third bedroom that we converted into a home office for the client.
Some of the largest transformations were made in the basement, where unfinished space and lack of light were converted into gloriously lit, cozy, finished spaces. Our first task was to convert the massive basement living room into the new master bedroom for our clients. We removed existing built-ins, created an entirely new walk-in closet, painted the old brick fireplace, installed a new gas unit, added carpet, introduced new lighting, replaced windows, and upgraded every part of the aesthetic appearance. One of the most incredible features of this space is the custom double sliding barn door made by a Denver artisan. This space is truly a retreat for our clients!
We also completely transformed the laundry room, back storage room, basement master bathroom, and two bedrooms.
This home’s massive scope and ever-evolving challenges were thrilling and exciting to work with, and the result is absolutely amazing. At the end of the day, this home offers a look and feel that the clients love. Above all, though, the clients feel the spirit of their family home and have a welcoming environment for all members of the family to enjoy for years to come.

This project was such an incredible design opportunity, and instilled inspiration and excitement at every turn! Our amazing clients came to us with the challenge of converting their beloved family home into a welcoming haven for all members of the family. At the time that we met our clients, they were struggling with the difficult personal decision of the fate of the home. Their father/father-in-law had passed away and their mother/mother-in-law had recently been admitted into a nursing facility and was fighting Alzheimer’s. Resistant to loss of the home now that both parents were out of it, our clients purchased the home to keep in in the family. Despite their permanent home currently being in New Jersey, these clients dedicated themselves to keeping and revitalizing the house. We were moved by the story and became immediately passionate about bringing this dream to life.
The home was built by the parents of our clients and was only ever owned by them, making this a truly special space to the family. Our goal was to revitalize the home and to bring new energy into every room without losing the special characteristics that were original to the home when it was built. In this way, we were able to develop a house that maintains its own unique personality while offering a space of welcoming neutrality for all members of the family to enjoy over time.
The renovation touched every part of the home: the exterior, foyer, kitchen, living room, sun room, garage, six bedrooms, three bathrooms, the laundry room, and everything in between. The focus was to develop a style that carried consistently from space to space, but allowed for unique expression in the small details in every room.
Starting at the entry, we renovated the front door and entry point to offer more presence and to bring more of the mid-century vibe to the home’s exterior. We integrated a new modern front door, cedar shingle accents, new exterior paint, and gorgeous contemporary house numbers that really allow the home to stand out. Just inside the entry, we renovated the foyer to create a playful entry point worthy of attention. Cement look tile adorns the foyer floor, and we’ve added new lighting and upgraded the entry coat storage.
Upon entering the home, one will immediately be captivated by the stunning kitchen just off the entry. We transformed this space in just about every way. While the footprint of the home ultimately remained almost identical, the aesthetics were completely turned on their head. We re-worked the kitchen to maximize storage and to create an informal dining area that is great for casual hosting or morning coffee.
We removed the entry to the garage that was once in the informal dining, and created a peninsula in its place that offers a unique division between the kitchen/informal dining and the formal dining and living areas. The simple light warm light gray cabinetry offers a bit of traditional elegance, along with the marble backsplash and quartz countertops. We extended the original wood flooring into the kitchen and stained all floors to match for a warmth that truly resonates through all spaces. We upgraded appliances, added lighting everywhere, and finished the space with some gorgeous mid century furniture pieces.
In the formal dining and living room, we really focused on maintaining the original marble fireplace as a focal point. We cleaned the marble, repaired the mortar, and refinished the original fireplace screen to give a new sleek look in black. We then integrated a new gas insert for modern heating and painted the upper portion in a rich navy blue; an accent that is carried through the home consistently as a nod to our client’s love of the color.
The former entry into the old covered porch is now an elegant glass door leading to a stunning finished sunroom. This room was completely upgraded as well. We wrapped the entire space in cozy white shiplap to keep a casual feel with brightness. We tiled the floor with large format concrete look tile, and painted the old brick fireplace a bright white. We installed a new gas burning unit, and integrated transitional style lighting to bring warmth and elegance into the space. The new black-frame windows are adorned with decorative shades that feature hand-sketched bird prints, and we’ve created a dedicated garden-ware “nook” for our client who loves to work in the yard. The far end of this space is completed with two oversized chaise loungers and overhead lights…the most perfect little reading nook!
Just off the dining room, we created an entirely new space to the home: a mudroom. The clients lacked this space and desperately needed a landing spot upon entering the home from the garage. We uniquely planned existing space in the garage to utilize for this purpose, and were able to create a small but functional entry point without losing the ability to park cars in the garage. This new space features cement-look tile, gorgeous deep brown cabinetry, and plenty of storage for all the small items one might need to store while moving in and out of the home.
The remainder of the upstairs level includes massive renovations to the guest hall bathroom and guest bedroom, upstairs master bed/bath suite, and a third bedroom that we converted into a home office for the client.
Some of the largest transformations were made in the basement, where unfinished space and lack of light were converted into gloriously lit, cozy, finished spaces. Our first task was to convert the massive basement living room into the new master bedroom for our clients. We removed existing built-ins, created an entirely new walk-in closet, painted the old brick fireplace, installed a new gas unit, added carpet, introduced new lighting, replaced windows, and upgraded every part of the aesthetic appearance. One of the most incredible features of this space is the custom double sliding barn door made by a Denver artisan. This space is truly a retreat for our clients!
We also completely transformed the laundry room, back storage room, basement master bathroom, and two bedrooms.
This home’s massive scope and ever-evolving challenges were thrilling and exciting to work with, and the result is absolutely amazing. At the end of the day, this home offers a look and feel that the clients love. Above all, though, the clients feel the spirit of their family home and have a welcoming environment for all members of the family to enjoy for years to come.

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 home is located on a one acre parcel of land near the banks of the Milwaukee River in the older established subdivision of Sleepy Hollow Estates in Mequon, Wisconsin. The inspiration for this Glen Cove Residence was to bring the desired by many, contemporary and modern lifestyle of a down town loft and establish it in a neighborhood in the suburbs amongst traditional style homes.
Sleepy Hollow Estates like many older established neighborhoods throughout the North shore and Westside communities of Milwaukee had great local architects such as John Randall McDonald and Russell Barr Williamson, who built contemporary master pieces amongst very traditional style homes. This created diversity in the style of homes in these neighborhoods which for the people living in them and the people just passing by, an experience of harmony and cultural lifestyle.
Unfortunately today, many new neighborhood developments lack harmony and cultural lifestyle and don’t allow for homes such as this Glen Cove Residence to be built. And for that matter many of the homes built by John Randall McDonald and Russell Barr Williamson back in the 1950’s. When driving through these new developments, one would experience beautiful traditional style homes, but all the homes tend to look the same. There is no diversity in the styles of homes thus these neighborhoods lack the harmony and a cultural life style for the people who live there or what people are looking for when buying a home that reflects their lifestyle. This Glen Cove Residence is an example that a contemporary home which offers a modern lifestyle that many desires can be established amongst traditional homes while blending in with the neighborhood.
Don’t be fooled by the flat roof of this home, building technology has come a long way since Frank Lloyd Wright! The roof system on this home is more energy efficient than most roof systems builders are putting on traditional homes today and it doesn’t leak! This Glen Cove Residence was built using all traditional building materials that you would see in homes being built in new developments today. There is a misconception out there that modern homes are expensive to build. That is not true! This Glen Cove Residence was built for roughly $130 per square foot which is the same price one would pay for a similar builder’s model traditional style home with the same upgrades.
This Glen Cove Residence consists of three bedrooms and three and one half baths. All bedrooms are located on second floor with laundry, guest bath and a master suite. Located between the first and second floors off of the landing is an office/den space. The first floor is open concept with the kitchen, dining and living areas located at the rear of the home with expansive windows allowing a great connection to back yard area and outdoors. On the back of the home is a covered deck area allowing for outdoor entertaining without the worry of the elements. The first floor also offers a powder room, mudroom and walk-in pantry off the kitchen area. From the mudroom there is access to an attached four car tandem garage. From the first floor to the finished basement is an open stair allowing the basement area to feel as part of the house and not just a basement? The basement consists of a main living area, game area with wet bar, exercise room, kids play room with 14’ ceilings, full bathroom and mechanical room with storage closets throughout.

8.5kW System consisting of 34 Black SolarMax SMX250 Solar Panels, 34 Enphase M215 Micro-Inverters, & Matte Black Low Profile Railing.
Photo Credit: Steve Jacobs/Jacobs Media Services

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.

Relationship: Client
Project Date: March 2014
Project Price Range: more than $100,000
Having purchased our first house in Valley Glen, North Hollywood, we were aware it was in need of serious remodeling. A 1950s Ranch-style home, it came complete with peeling wallpaper, musty carpeting, and even some dilapidated walls. As first-time homeowners we were prepared to spend more money to improve it, but weary when we began meeting contractors. Buyer’s remorse already set in when we interviewed several contractors who were either aloof or unscrupulous.
Then we were fortunate enough to find Mike Ross. He immediately allayed our stress with his professional and forthright demeanor and his integrity was as rock solid from the day we met him through the several months it took to complete our large renovation.
While we had some specific things we wanted in our house, Mike and his team took our wish list and far exceeded our expectations to help truly realize the vision of our dream. Originally a three-bedroom, fourteen-hundred square foot home, our remodel brought an addition of a thousand square feet as well as an overhaul of the landscape; this prospect was particularly daunting for uninitiated owners such as us, but Mike’s consummate professionalism shone through and made the task exponentially less stressful for us.
As well as a new 850 sf Master Bedroom, including a fireplace, and a steam unit in the bath, we added a cozy home theater room, laundry room, and the once forgotten backyard brought a new deck and patio with a trellis. Furthermore, because we went green and made it a smart home, we’re already more energy efficient. In several rooms, as well as the main hallway, for example, Mike installed solar tubes and the amount of natural light that bathes the house is amazing. Even my mom, when she came to visit, was always looking for a light-switch.
As our contractor, Mike Ross took the reins to steer the project and keep it on course and he did so exceptionally. Mike and his team were as attentive to the quality of every nook and corner and he always sought our approval and happiness. Consistently communicative, he always kept us in the loop about progress and was always there to answer any questions and concerns. When an unforeseen contingency did arise, Mike assuaged our concerns by taking action ASAP to rectify the problem. Mike’s team, too, all take pleasure in their efforts. An eclectic group of skilled artisans and craftsmen, they are all polite, punctual, and proud of their work.
Thank you, Mike Ross, for your outstanding leadership, your impeccable standards, and your commitment to our happiness.
Dale & Helen Keis

This home is located on a one acre parcel of land near the banks of the Milwaukee River in the older established subdivision of Sleepy Hollow Estates in Mequon, Wisconsin. The inspiration for this Glen Cove Residence was to bring the desired by many, contemporary and modern lifestyle of a down town loft and establish it in a neighborhood in the suburbs amongst traditional style homes.
Sleepy Hollow Estates like many older established neighborhoods throughout the North shore and Westside communities of Milwaukee had great local architects such as John Randall McDonald and Russell Barr Williamson, who built contemporary master pieces amongst very traditional style homes. This created diversity in the style of homes in these neighborhoods which for the people living in them and the people just passing by, an experience of harmony and cultural lifestyle.
Unfortunately today, many new neighborhood developments lack harmony and cultural lifestyle and don’t allow for homes such as this Glen Cove Residence to be built. And for that matter many of the homes built by John Randall McDonald and Russell Barr Williamson back in the 1950’s. When driving through these new developments, one would experience beautiful traditional style homes, but all the homes tend to look the same. There is no diversity in the styles of homes thus these neighborhoods lack the harmony and a cultural life style for the people who live there or what people are looking for when buying a home that reflects their lifestyle. This Glen Cove Residence is an example that a contemporary home which offers a modern lifestyle that many desires can be established amongst traditional homes while blending in with the neighborhood.
Don’t be fooled by the flat roof of this home, building technology has come a long way since Frank Lloyd Wright! The roof system on this home is more energy efficient than most roof systems builders are putting on traditional homes today and it doesn’t leak! This Glen Cove Residence was built using all traditional building materials that you would see in homes being built in new developments today. There is a misconception out there that modern homes are expensive to build. That is not true! This Glen Cove Residence was built for roughly $130 per square foot which is the same price one would pay for a similar builder’s model traditional style home with the same upgrades.
This Glen Cove Residence consists of three bedrooms and three and one half baths. All bedrooms are located on second floor with laundry, guest bath and a master suite. Located between the first and second floors off of the landing is an office/den space. The first floor is open concept with the kitchen, dining and living areas located at the rear of the home with expansive windows allowing a great connection to back yard area and outdoors. On the back of the home is a covered deck area allowing for outdoor entertaining without the worry of the elements. The first floor also offers a powder room, mudroom and walk-in pantry off the kitchen area. From the mudroom there is access to an attached four car tandem garage. From the first floor to the finished basement is an open stair allowing the basement area to feel as part of the house and not just a basement? The basement consists of a main living area, game area with wet bar, exercise room, kids play room with 14’ ceilings, full bathroom and mechanical room with storage closets throughout.

Hearthstone Craftsbury in Matte Black. Also available in Brown Enamel and Basil Enamel. Heats up to 1300 sq ft with a heat life of up to 7 hours thanks to the soapstone lined firebox. Single level control makes it easy to operate with great consistence. Embossed cast iron is classically good looking.

White shaker style cabinets. Central island with seating for three. Large U-shape layout with tile backsplash.
Photography by Spacecrafting
Example of a large transitional u-shaped eat-in kitchen design in Minneapolis with an undermount sink, shaker cabinets, white cabinets, granite countertops, white backsplash, stone tile backsplash, stainless steel appliances and an island
Example of a large transitional u-shaped eat-in kitchen design in Minneapolis with an undermount sink, shaker cabinets, white cabinets, granite countertops, white backsplash, stone tile backsplash, stainless steel appliances and an island

Hearthstone Manchester in Matte Black. Also available in Brown Enamel. Heats up to 2400 sq ft with a heat life of up to an amazing 14 hours thanks to the soapstone lined firebox. Side door loading as well as front load. Single level control makes it easy to operate with great consistence. Embossed cast iron is classically good looking.Choose between a right or left side door!

8.5kW System consisting of 34 Black SolarMax SMX250 Solar Panels, 34 Enphase M215 Micro-Inverters, & Matte Black Low Profile Railing.
Photo Credit: Steve Jacobs/Jacobs Media Services
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