colored concrete floor

Huff / Craven Net Zero House

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Design for a new net-zero-energy house including an airtight and superinsulated enclosure, heat recovery ventilation, and photovoltaic array.  Exposed beams in double height living room ceiling. Detached Accessory Dwelling Unit (DADU) wrapped in weathering steel with spiral stair inside.  Completed in summer 2018. 

Phantom Lake Passive House

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This water front home with lake views and covered decks off every major room is precertified as a Passive House. The project team applied best practices for energy efficiency, including superinsulation, extreme air tightness, triple glazed windows, radiant floor heating, heat pump mechanical systems, and a Heat Recovery Ventilator. Under construction, expected to be complete in autumn 2018.

Huppert remodel / addition

Located in the Fremont neighborhood of Seattle, this narrow, three story house has a magnificent view to the Olympic mountains.  The project added a two story Mother in Law (ADU) addition for a second family to rent. In between, a new skylit entry hall features a pond fed by rainwater from the addition roof.

Though similar in appearance to the main house, the ADU incorporates more progressive construction techniques than its 20-year-old parent.  ICF stem walls bear on footings of concrete mixed with 43% flyash.  Walls and roof structure are SIP insulated sandwich panels, and cement board siding is installed over a rain screen.

Heat is provided by a hydronic radiant slab below and a single fan coil unit above.  The roof gutters gather water in reused wine barrels for irrigating the yard.  The existing garage became a demonstration site for Seattle's eco-roof initiative.  Certified Built Green 3 Star.

PCC Natural Market - Redmond

Initial grocery store tenant improvement in new building, 24234 ft2, in Redmond WA.  The electric lighting scheme provides full spectrum, specialty illumination at 1.11 watts per square foot. 28 new skylights flood the sales area with daylight.  Waste heat from the refrigeration compressors preheats the hot water used for cooking and washing, and also provides the heat that keeps the building interior warm.

The materials in the store have 40% recycled content, and 30% of them come from within 500 miles of the store. Over 80% of the construction waste was recycled by the builders. Cabinets and incidental lumber were made from FSC certified sustainably harvested wood.  Use of only low toxic and low VOC interior paints, adhesives, and sealants, as well as highly filtered ventilation air provide superior indoor air quality for staff and customers.

Certified LEED-CI Gold, the first Gold grocery in the world.