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Natural Synergy

Posted by Cati O'Keefe

Dec 1, 2013 12:53:00 PM

Green Home of the Year Awards 2013
Best Exterior Integration - Sonoma, Calif.

This LEED platinum house boasts roof gardens and thoughtful landscaping.

FARM HOUSE VERNACULAR and chicken coops were the design inspiration for the 3,960-square-foot, two-story home. Covered walkways, gardens and a pool link the simple gabled structures into a family compound.

The home is a combination of straw-bale and wood-frame construction, with a living roof—all built to LEED forSonoma Farmhouse Homes platinum certification.Twelve thermal solar collectors heat the pool as well as domestic hot water. The solar collectors, supplemented with a geothermal system, also heat a subterranean sand heat sink that holds heat for several weeks for space heating.

The 14kW PV array ensures that the home operates with net-zero energy.The site’s old swimming pool, once covered, now serves primarily as a 20,000-gallon cistern. The collected rainwater irrigates the living roof, and graywater from the home is also used for irrigation.The 32-acre site is part of an historic farm that will eventually be certified organic.

Bioswales and infiltration basins provide natural irrigation—as well as filtering and recharging ground water.



  • Sonoma Exterior

    Project Stats (Click for Interactive Image)

    Name: Sonoma Farmhouse—Sonoma, CA
    Builder: Bruce Hammond of Hammond & Company
    Architect: Daniel Smith & Associates Architects
    Photos: Hammond & Company | Russell Abraham Photography

  • Sonoma interior

    Contemporary Farmhouse

    While the exterior is decidedly farmhouse, the interior is contemporary and uses natural materials and abundant natural light.

  • Sonoma Kitchen

    Zoned Work Areas

    Abundant morning light illuminates the huge kitchen. Zoned work areas include a bright-red island with sink and low-flow fixtures.

  • Sonoma exterior2

    Heat Storage

    The home's site features a thick layer of subterranean sand that acts as a heat storage (and overflow) sink.

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