Located on a main street in Boulder, Colorado, Hoefling House flaunts craftsmanship while disguising a nearly net-zero existence. While appearing massive to the street-side visitor, the home includes meticulous attention to detail that compresses a lot into 3,100 square feet.

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A two-story home with a balcony and several windows. The home is lit up from within.

Built in collaboration between Rodwin Architecture and Skycastle Construction, the project’s goal was to compose a “clean, bold, and original modern design.” Furthermore, the client requested the highest levels of sustainability. The house earned a LEED Platinum certification and a Home Energy Rating System (HERS) of 14 (scale of 0 to 150), ranking exceedingly high for energy efficiency and green construction. Hoefling House delivers this without sacrificing aesthetics or function. 

Related: A lakeside, prefab home in Quebec aims for LEED Gold

A two-stroy home with a balcony and several windows. There is a small green lawn with a tree sapling.

Rodwin and Skycastle obtained these accolades (along with the clients’ praise) by using a combination of passive solar design, a 10kWh solar PV array tucked onto the roof, a ground source heat pump and boiler, radiant flooring with high thermal mass, foam insulation, Energy Star “tuned” windows, all LED lights, Energy Star appliances, EPA Watersense plumbing fixtures, and a heat recovery ventilator. To ensure the team met marks along the way, a LEED Manager and engineers consulted on the project. 

A stairwell next to two large windows.

The welcoming and functional exterior uses board-form concrete, stucco and clear Douglas fir, creating a “distinctly Colorado” style. Meanwhile, warm modernism defines the home’s interior design. To achieve this vibe, co-project managers and designers Jocelyn Parlapiano and Cecelia Daniels served up a thoughtful color and material palette and all finishes. Design elements range from radiant heated Travertine tiles to the antique bureau in the entrance. Other features include a live roof garden located on a second-floor balcony and an acoustically tuned concert room inside.

A hallway leading from the entry room into the living room.

Nature was a central element for both the interior and exterior design plans. At Parlapiano’s suggestion, the team decided to take advantage of passive solar energy by rotating the structure. This allowed the windows to face south, not only providing sunlight in the winter but roofline protection in the summer. This orientation also allows the clients to take in “southwestern views of the Flatirons, sky, and several towering specimen Ponderosa Pines on the property, along with plenty of natural light.”

A living room area with a large dark blue sofa, a dark blue chair, wood floors and wood ceiling.

Features throughout blur the line between indoor and outdoor spaces, making use of massive windows and sliding doors that open up to create a massive open-air lounge area. The surrounding area is equally equipped for outdoor living with a built-in BBQ grill, integrated planters, gas fire pit, dining table, raised-bed veggie garden and fruit tree orchard. 

A large piano in the corner off the side of the living room.

Embracing the elements of sustainability, innovation and function, Hoefling House is, as the architects state, “as smart and efficient as it is modern and chic.”

+ Rodwin Architecture and Skycastle Construction

Via Modern Architecture + Design Society

Images via Modern Architecture + Design Society