For housing programs & nonprofits
Home-repair and affordable-housing programs fix what's failing, but without a shared standard, "fixed well" means whatever each contractor decides. GreenStar gives your program published criteria, before-and-after verification, and proof funders can audit. Because the standard is published in full, you can adopt it for free without licensing anything.
The program problem
Quality varies by contractor because there is no shared definition of "done right."
Funders and councils ask what public dollars bought, and the answer is anecdotes.
Most green certifications were built for new construction, while your work is rehab and retrofit.
Adopting a proprietary standard means license fees and someone else's rules.
The path
Use the standard as your program specification as-is, or adapt it to your jurisdiction. No license and no permission needed.
Browse the standard →Home Energy Scores and GreenHome Inspections bracket each renovation, so every certificate represents measured improvement rather than intent.
The inspection process →Certified homes with documented scores give funders, councils, and auditors an answer that anecdotes never will, the way ICCF did across a 213-unit portfolio.
Read the ICCF case study →The Institute works with municipalities and housing nonprofits on adoption, training, and verification.
Not you? GreenStar also serves homeowners and builders & developers and municipalities and home improvement enthusiasts .