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Hupomone Ranch

Turnbull Griffin Haesloop

Project Status



2,500 sq. feet
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Project Description


Hupomone Ranch is an original 160 acre homestead located in the Chileno Valley, a few miles wet of downtown Petaluma. The ranch had 2 of 2 been fallow for over 30 years and the owners wanted to build a family house that would reflect their commitment to sustainable farming, draw on the natural serenity of the site and build on the sense of place in western Petaluma, where farming and ranching are still a part of people's daily lives.

The site has a wonderful balanced quality to it, and the simple grounded form of the barn shape is sited to compliment this setting and capture the long views to the coastal range beyond. Entering a low porch on the more opaque north side under the loft above, the light-filled house opens up to the long view south and gathers the bedrooms and kitchen to either side.

The house is certified LEED Platinum and included a number of energy saving features, exceeding Title 24 by over 50 percent. Passive heating and cooling with thermal mass and insulation, geothermal, radiant cooling and heating along with solar and photovoltaic panels contribute to the house's energy efficiency.

An integral part of the design, the landscaping includes several outdoor living areas, organized along a riparian restoration and native plantings.
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