We’re actively working to reduce climate impact in the housing market by: promoting and verifying high-performance building practices for new construction, documenting energy use in existing homes, and investigating new ways to decarbonize buildings. From our flagship home certification program to building science research, we focus on services that help drive market value for climate-friendly housing options.



Building Certifications

Third-party verification of above-code building practices for residential new construction.

Home Energy Labeling

Development, implementation and administration of Home Energy Score programs.

Building Policy

Helping entities develop and enact policies that improve climate outcomes through the built environment

Residential Innovations

Research and best practice recommendations for addressing climate change within the housing market.

Our Impact

Total Residences Certified


Low Income Residences Certified


Home Energy Scores Delivered