How Mason Kirby blends meticulous analysis with contemporary design in San Francisco

In the heart of San Francisco’s historic Bernal Heights neighborhood, Mason Kirby presents ‘Box Elder’, a testament to meticulous site analysis and innovative design.

Bernal Heights is the quintessential San Francisco neighbourhood. Its quirky streets and homes were developed and settled by a succession of different communities over the past century. Each wave of residents weaves new threads into an astonishing narrative tapestry across the skyline of the neighbourhood. Now comes a new story thread in the form of a residence designed by architect Mason Kirby: ‘Box Elder’, named after a song by the American indie rock band Pavement.

Tucked along the perimeter of the landmark Bernal Heights Park, ‘Box Elder’ is a refined contemporary three-bedroom, two-bath home whose design exemplifies smart site utilisation, seamlessly connecting indoor luxury with outdoor living.

The hillside corner lot presented tricky design challenges for all involved. The atypical site is encumbered by both planning department restrictions and the contentious opposition of active and vocal community groups. Carefully applying their rigorous, collaborative design process, Mason Kirby delivered a solution which honours the planning code, respects the community context, and achieves the aspirations of his clients. The result is a visually stunning three-story home that prioritises natural light, open spaces, and captivating Southerly views.

The home’s open design spans three contemporary levels, meticulously crafted to maximise natural illumination, breeziness, and scenic views. This philosophy creates an ambiance that aligns with modern-day conveniences while fostering a connection with nature.

‘Box Elder’ features two distinct volumes: a vertical “private stack” housing bedrooms, and a horizontal “public stack” containing the kitchen, dining and living areas, and an external deck. This division enhances functionality and delineates private and public spaces.

Mason Kirby’s thoughtful design for the ‘Box Elder’ house won praise from San Francisco Planning Department Commissioner Kathrin Moore, “It’s a fun building. It sits in the right part of the site. It masses very neatly with its neighbors…(and) It meets a critical question: How do we sensitively addbuildings to non-conforming sites?” 

Mason Kirby formulates the question differently: “What does a building owe its street?” Having designed dozens of hillside homes in the dense peculiar neighbourhoods of San Francisco, they have learned some answers. “A building must enter into an agreement with its street that celebrates the value of the public realm and their interdependence.”

The building harmonises with the built environment, but isn’t bound by it, ‘Box Elder’ elevates the residential living experience by rising up to embrace the broader urban geography. The building’s loftiness, inspired by Italian Renaissance urbanism, provides occupants with an edifying perspective while maintaining visual connections to surrounding landmarks.

By raising the main edifice to embrace the panoramic Southerly vistas, ‘Box Elder’ exemplifies the profound impact of meticulous site analysis and design in harmonising a dwelling with its natural milieu.

While the two rooms on the lower level are also technically bedrooms, the design of these rooms shows foresight of the growing work-from-home trend. These rooms, though compact, are perfect for professionals seeking separate office spaces with ample light and air. “This is not the place toraise four kids,” says lead architect Mason Kirby, “It’s a place for a smart car, a bicycle, and work-from-home professionals.”

Mason Kirby’s vision for the kitchen emphasises unobtrusive design, seamlessly blending it with the living and dining areas. ‘Box Elder’ also offers outdoor spaces, including a roof deck, covered pathway, patio, and an inviting front yard, enhancing its identity as a tranquil haven.

The construction of ‘Box Elder’ was entrusted to J5 Construction, ensuring precision, quality, and intricate detailing. The result is a unique design that balances aesthetics, functionality, robustness, and compliance with local building norms.

‘Box Elder’ is an inspirational example of site-centric design, open living spaces, and the importance of skilled builders in realising visionary designs.

About Mason Kirby

Mason Kirby partners with discerning individuals and visionary developers to unlock the potential of construction projects. Their architects blend San Francisco’s heritage with contemporary innovation, crafting enduring symbols of individuality and beauty. Their projects span a spectrum of design styles, liberating homes from conventional boundaries.

Website: masonkirby.com

Photography: Molly Decoudreaux

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