This new, ground-up single-family residence
peers over a steep downhill slope where views of the City and Bay are
omnipresent. The owners, a family of four, were both architect and
builder. The goal of the project was to
create a modern, eco-sensitive, urban retreat that was kid tough and kid
friendly, but didn’t compromise on design. The open plan is rationally composed
of two side-by-side volumes, the larger volume sliding past the smaller,
pushing out toward the view on three levels. The secondary volume is shorter,
creating a three story, south facing notch allowing light, air and more views
to penetrate the building. The volumetric push/pull creates a hierarchy on the
building façades, expressing interior functions, and providing covered areas at
key entry points. Two boxes, echoing traditional bays, project from the front
façade; one a steel and acrylic balcony, the other an oversized steel and glass
bay-containing window seat.
The rear, view side of the house is broken down
with projecting balconies and capped with a sloping roof, projecting out from
the living room. Steel channels structurally and visually connect the balconies
and roof projection to the main stucco volume.
Entry into the house is directly off of street
level where an open, translucent staircase flows up or down and floods the
three levels with natural light from a large, operable skylight above. The
house is broken down programmatically by floor. The public spaces of the
kitchen, dining room, living room and studies are on the upper floor.
Separation of the formal public spaces is blurred, opening the floor to views
and creating a multi-functional, family friendly space. The living room drops
three steps, separated by a low cabinet, creating a more dynamic spatially
volume. Below the entry level is the master suite. A graphic row of cabinetry
opens the “closet” into the room resulting in a long, dramatic space again open
to the views. Down one more level is the kid’s floor with a large family room,
two bedrooms and a bathroom. Deck and yard are accessed from this level,
drawing in more light and views.
Using a consistent palette of materials and
detailing, the project is an expression of contemporary craft. Visible
structural steel and wood cabinetry are used throughout the house, graphically
defining or dividing spaces. Materials, details and connections are visible
expressions of the design and construction. This is exemplified in the
intricate staircase where water jet-cut steel stringers support translucent
acrylic treads and risers.
The house was designed and built using
sustainable design principles. Energy
efficiency, low consumption and low toxicity were key ideas. A panelized
framing system was used with 80% of the framing built off-site, delivered and
craned into place, reducing waste and on-site construction time. Materials used include high fly ash
concrete, engineered lumber, blown-in cellulose insulation, FSC certified
woods, palm wood flooring low VOC finishes, etc. A photo voltaic system provides
nearly 100% of the required electricity and solar hot water panels reduce
heating loads for the hydronic radiant heat and domestic hot water.