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Best ZeroNet EnergyDesign

Grand Awards

Zero Cottage

San Francisco, CA


Falcon Five Design-Build


David Baker Architects

Landscape Architect:

Fletcher Studio

Judges Statement:

This cottage is an investigation of compact,

sustainable urban development and a contemporary approach to

living and working. Composed of a 712-square-foot living space set

over a 430-square-foot workshop, it pairs with an existing building to

complete a flexible, mixed-use compound that also includes a two-

bedroom flat, studio apartment, and storefront space.

The freestanding addition presented an opportunity to explore

advanced sustainable design, construction techniques, materials and

technologies, with a goal of achieving Passive House and Net-Zero

Energy certification. The cottage is certified LEED for Homes Platinum. It

is the first Passive House-certified home in San Francisco and officially

achieved Net Zero Energy Building Certification in June 2014.

The cottage continues the evolution of an urban site that predates

the 1906 earthquake. The original compound comprised an upstairs

flat set above a ground-floor grocery store, and additional living

quarters in the rear yard. Today, the cottage stands behind the

renovated Edwardian building, which holds a studio apartment that

rented to travelers, a private flat, and Store Front Lab, a community-

focused cultural initiative that gives the historic commercial space

a contemporary public purpose. Over time, the flexibility of the

compound’s components will support a wide range of uses and


Award of Merit

Arbor Green

Carson, CA


Affirmed Housing Group


Withee Malcolm Architects


Darsono Design

Energy Efficiency Consultant:

Partner Energy

Photography: Matthem MillmanPhotography

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