CLAM's Blue2 Open House Celebration - Monday, July 5, 2010

Passive House Meets Affordable Housing

Please Join CLAM (Community Land Trust Association of West Marin)
Monday, July 5, 11 a.m. to 2 p.m.
For more information, please email
This event is free and open to all.

--> Download Blue2 Open House flyer

CLAM will have a formal Open House Celebration starting at 11:00 a.m., and the architect and builder will present a short technical overview of what makes this a Passive House after that ends. Please spread the word and join the celebration of this momentous occasion!

NOTE: If you are not able to make this date, come see the house at the Blue2 Green Building Mixer on July 8.


Blue2 House
11560 California 1
Pt Reyes Station, CA 94956

Please park next door at West Marin School
NOTE: This is a home. Please, no random site visits.

View Larger Map

Blue2 and Passive House

Passive House is the German system of super low energy buildings that essentially have no furnace, and instead heat themselves with saved heat from the occupants and appliances. The European Union has almost 20,000 of these built, and they are considering making it their required building code, whereas there are about a dozen built in the US. A Passive House typically uses less than half the energy of an ENERGY STAR house and is the low cost path to net zero energy buildings, meeting California’s Green House Gas Reduction AB 32 targets, and exceeding thresholds proposed in the CA PUC's Long-term Strategic Plan.

Additionally, Passive House buildings are cost effective to construct as they rely on inexpensive efficiency measures, not less effective equipment, and cost effective to run as they have such low heating and energy requirements. Because of their low carbon footprint, they are great for the environment. Passive Houses have the highest quality indoor air as they are constantly supplied fresh tempered air and old air is constantly flushed. As the temperature is constant, they have superior occupant satisfaction and comfort. This marks the beginning of a new way of building in the US.

Blue2 is an affordable housing unit developed by CLAM, the Community Land Trust Association of West Marin. CLAM is linking sustainability with its mission of affordability. By adopting the Passive House standard, they have a building with low energy costs that will lock in affordability forever, built with low construction costs. Over half the funds for this project were raised by local, personal donations.

Besides seeking Passive House certification, Blue2 is also seeking LEED Homes and GreenPoint Rated certifications. It is showing how these green metrics are complementary, with Passive House addressing the low energy aspect that the others have not had the tools to address.

Blue2 is the second unit beside the Blue1 house, which was renovated to deep energy reductions using Passive House standards. Together, they are a small island of energy efficiency that will have lasting impact.

To learn more

Passive House Institute U.S.:
Passive House California: