Diamond Rock: a Sonoma Valley house celebrates its surroundings
A Sonoma Valley house celebrates its surrounding

The rugged landscape above the Californian Sonoma Valley is not a frequent choice of site for new sleek and comfortable family homes, but Schwartz and Architecture have managed to turn this awkward spot into a dream location with the appropriately named Box on the Rock.
Starting with a basic rectangle, Schwartz and Architecture distorted and rearranged the shape to come up with a diamond-like geometric design. "We wanted a very abstract, sculptural and organic object", explains head architect Neal Schwartz. The result is a house that seems to respond effortlessly to its difficult site, whilst still meeting all the needs of the clients.
Take an interactive tour of Box on the Rock house
Perched above the rocky undergrowth and hillside waterways on pier foundations, the house is quite literally a box on the rocks. Whilst the grey-stained cedar wood helps the building blend in to the stony landscape, its irregular and unusual shape ensures it still makes its own mark on the surroundings.
One of the main goals was to design a site-responsive house that could show off and celebrate its cinematic location. This was achieved through the building's dramatic approach. A square cut-out entrance acts like a camera viewfinder, tantalisingly framing part of the view that is finally revealed in its entirety by a wall-length window in the living area.
As well as maximising the internal space within the necessarily small footprint, which houses any external space inside the actual structure, the geometry of the design, with its angular walls, responds to the climate in order to make the most of the sun's heat, shade and the natural wind ventilation. The house works with nature to create a comfortable living space, eliminating the need for expensive heating and cooling systems.
Two wings offer a more introverted and secluded space for the bathroom and bedrooms, which open up onto a central courtyard that provides a sheltered outdoor space against the area's extreme microclimate. The projecting wings are connected by a bridge-like living area that bulges outwards as if to touch the beautiful landscape. To combat the uneven site, the architects designed a cantilevered terrace, creating a sense of movement and emphasising the idea of the house balancing precariously upon the rocks and boulders.
By quite literally thinking outside of the box, Schwartz and Architecture have designed a building that works with, rather than against, its powerful surroundings, perhaps even improving on an already spectacular setting.
The geometric design enables the house to work with the Californian climate. The walls' different angles make the most of both the sunlight and shade to cool or heat up the buildling naturally.
The relatively small entrance area acts like a camera viewfinder, opening up to reveal a cinematic view framed by the large, wall-length window on the opposite façade
A bridge-like living area connects the two bedroom wings of the house, which are separated by an external courtyard
The courtyard provides a sheltered outdoor area to protect residents from the extreme microclimate of the Californian Sonoma Valley
The house cantilevers over the hilly site and appears to balance elegantly above the rocky landscape, a design decision that led to its apt name, Box on the Rock
Wall-length windows create the illusion of a much larger space opening the house outwards into the dramatic surroundings
By splitting the house into separate wings with a central connecting courtyard, the bedrooms are peaceful resting areas, isolated from the living and kitchen space
The courtyard, which can be accessed from the bedrooms, offers uninterrupted views of the spectacular landscape beyond
The cantilevered terrace pushes the house outwards into the valley and allows residents to make the most of the open views and natural surroundings
INFORMATION
Photography: Bruce Damonte
Wallpaper* Newsletter
Receive our daily digest of inspiration, escapism and design stories from around the world direct to your inbox.
-
All-In is the Paris-based label making full-force fashion for main character dressing
Part of our monthly Uprising series, Wallpaper* meets Benjamin Barron and Bror August Vestbø of All-In, the LVMH Prize-nominated label which bases its collections on a riotous cast of characters – real and imagined
By Orla Brennan
-
Maserati joins forces with Giorgetti for a turbo-charged relationship
Announcing their marriage during Milan Design Week, the brands unveiled a collection, a car and a long term commitment
By Hugo Macdonald
-
Through an innovative new training program, Poltrona Frau aims to safeguard Italian craft
The heritage furniture manufacturer is training a new generation of leather artisans
By Cristina Kiran Piotti
-
This minimalist Wyoming retreat is the perfect place to unplug
This woodland home that espouses the virtues of simplicity, containing barely any furniture and having used only three materials in its construction
By Anna Solomon
-
We explore Franklin Israel’s lesser-known, progressive, deconstructivist architecture
Franklin Israel, a progressive Californian architect whose life was cut short in 1996 at the age of 50, is celebrated in a new book that examines his work and legacy
By Michael Webb
-
A new hilltop California home is rooted in the landscape and celebrates views of nature
WOJR's California home House of Horns is a meticulously planned modern villa that seeps into its surrounding landscape through a series of sculptural courtyards
By Jonathan Bell
-
The Frick Collection's expansion by Selldorf Architects is both surgical and delicate
The New York cultural institution gets a $220 million glow-up
By Stephanie Murg
-
Remembering architect David M Childs (1941-2025) and his New York skyline legacy
David M Childs, a former chairman of architectural powerhouse SOM, has passed away. We celebrate his professional achievements
By Jonathan Bell
-
The upcoming Zaha Hadid Architects projects set to transform the horizon
A peek at Zaha Hadid Architects’ future projects, which will comprise some of the most innovative and intriguing structures in the world
By Anna Solomon
-
Frank Lloyd Wright’s last house has finally been built – and you can stay there
Frank Lloyd Wright’s final residential commission, RiverRock, has come to life. But, constructed 66 years after his death, can it be considered a true ‘Wright’?
By Anna Solomon
-
Heritage and conservation after the fires: what’s next for Los Angeles?
In the second instalment of our 'Rebuilding LA' series, we explore a way forward for historical treasures under threat
By Mimi Zeiger