We work to accelerate the availability of sustainable homes for everyone.
In the Northwest
Our work in the Northwest focuses on providing a recognized green building standard for single and multifamily homes. We use our rigorous standards in conjunction with other national standards such as Passive House and LEED® for Homes to certify single and multifamily residences in Oregon and Southwest Washington. In addition we provide training to building and real estate professionals across the region. In 2017 we co-founded the ZERO Coalition (Zero Energy Building Oregon) in support of advancing home building in our state by 2030.
Across the Country
Nationally we work with states, cities, and national organizations to advance residential building sustainability. We do this through training, data solutions, and policy consultation. The goal of our national work is to share our regional expertise to other regions in order to advance residential sustainability across the entire U.S. This work includes our City HELP™ initiative, the Green Building Registry®, and program delivery support for the DOEs Home Energy Score.
Single family home certifications in Oregon and Southwest Washington.
Learn more about our certification standards, programs, and awards.
Find out more about the certifications we offer, our experienced team and projects we've worked on.
Discover classess available now >>
Find an Earth Advantage accredited professional >>
Access our huge resources section for real estate professionals >>
Learn more about our comittment to zero energy homes >>
Find out more about the program >>
Policy & Research
Learn about our research and read our publications >>
“Never doubt that a small group of thoughtful, committed citizens can change the world; indeed, it is the only thing that ever has.”
December Builder of the Month
Find out more about COBC >>
Earth Advantage Accredited Professionals
Find a professional in your area.
Green Builder of the Year Awards 2019
See the judges and download the application here.