Before & After: A Designer Mixes Asian and American Influences in Her Family’s San Francisco Kitchen

The clients are a couple of environmental scientists who, along with their two sons, relocated from the Oakland Hills to the warmer climate of Orinda. Their commitment to sustainability, including a request for net-zero energy performance annually, was evident in their thinking throughout the design process. A three-bedroom program began as a remodel of a 1954 ranch house at the foot of a hill next to a seasonal creek.  After finding the existing structure and soils to be unsuitable, the direction settled on reusing the existing footprint under the shade of a Valley Oak that had grown up close to the original house. The surviving portion of the original house is the fireplace which was wrapped in concrete and utilized for structural support. This made additional grading unnecessary and allowed the new house to maintain the same intimate relation to the old oak.  The family desired an open living layout that connected directly to the landscape. A mezzanine plan evolved with a double height family space nested with a master bedroom and study stacked above the kitchen and nook. A screened pacing deck for long phone calls shades the upper level from afternoon summer sun. Downstairs, secondary bedrooms along an extendable hallway, wrap an outdoor dining area situated between the kitchen and family room.  Construction materials and methods were considered in balance between first and lifecycle costs. The Corten steel rain screen for the exterior skin and interior wood were chosen to take advantage of zero annual maintenance cost and a shotcrete foundation allowed formwork to be repurposed for wood framing.  Single use material selections such as the Corten steel and shotcrete foundation reduced complexity in detailing and labor costs allowing a larger portion of the budget to be reallocated for upgraded mechanical, insulation, and glazing systems. The same attitude for interior finishes produced acoustically insulated, unfinished oak ceilings and walls. The sum total of the limited and landscape-driven materials presents a relaxed and quiet built environment that allows the senses to focus on the natural environment. A haptic connection to the rhythms of our planet is evident.  A 14-gauge Corten rain screen provides a no-maintenance skin. High levels of insulation and glazing efficiency reduce heating and cooling loads. An 8.1kW photovoltaic system provides on-site renewable energy and produced more electrical energy than the house used the first year. Rainwater is collected via a waterfall from the roof at the end of the hallway. Buried tanks store water for use in toilets and laundry. Greywater is collected separately and reused for irrigation. Electronically commutated motors and variable speed heat pumps are used to further limit energy use and control heating and cooling. An energy recovery ventilator is used to provide fresh air.

This renovation project originates from the intervention of a pre-existent building located in the western area of Mexico City; reshaping it into a studio-house project, with clear conditions and an eye set into the pre-existing circumstances. Our design solution takes on a residential structure from the 20th century and recycles it into a project that integrates itself with its immediate natural environment, shattering the hegemony of the high walls behind which the neighboring houses hide, in order to establish a dialogue that transcends the physical limitations of the project. The variations in the depths of different planes, offer the environment a living façade, where the interior activities are guessed from the visual filters that concede intimacy to the interior spaces. The interior-exterior duality brakes its context’s routine, offering a canvas of textures where the concrete and granite give away to the mildness of the metal and the lightness of plastic fabrics. To the exterior, the housing peeks out without invading; whilst opening in the interior, subtlety exposing itself, balancing the volumes that are inserted in the site. An interplay of planes occurs inside allowing the versatility of spaces by the movement of long-distance sliding screens and wainscots formed by timber that contrast in warmth and complexity with the sobriety of the stone coatings and apparent concrete of the enclosures. A new stairway, based on steel strips, reactivates the space where the old one stood, which gave an opportunity to re-signify the ambiance of the circulations as an experience of sculptural character. The front yard of the house marks the limits of the construction and together with the water mirrors and vegetation orient the route beneath a suspended long cover. The architectural program revolves around the home in the ground floor, leaving the studio in a privileged condition towards the garden. The living spaces in the first level have terraces and views to the exterior between and through a green façade woven of plastic cables (recovering the Acapulco chair technique) that sieve and melt together the thick vegetation of the existing trees. The terraces and windows allows an optimal ventilation, illumination and contextualization between the outside and inside. In the top level, the project offers a view above itself and the wooden horizon from a roof garden that elevates to a higher plane the user’s introspection, belonging and pertinence of itself.

Massive counter-weighted windows encase the facade—framing views of equally enormous Douglas firs.

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