Get certified
Anyone can follow the standard; that's the point of publishing it. Certification is for the moment someone else needs to believe you: an independent inspector tests the actual house, the Institute reviews the evidence, and the result goes on the record, permanently.
The honest question
A checklist you scored yourself convinces exactly one person. Certification means an independent professional ran the blower door, radon, and ventilation tests, and someone other than your contractor signed their name to the result.
The certificate, the level, the badges, and the Green Building Registry listing all attach to the address. Every future appraisal, listing, and buyer inherits the proof. Renovation receipts can't do that.
Certification fees are what let a 501(c)(3) nonprofit keep the entire standard free for everyone. You're not buying a logo from a licensing company; you're funding the thing you just got for free.
What certification includes
An independent, trained inspector assesses the actual house against the standard — blower door, ventilation, moisture, combustion safety. Plans reviewed for new construction; the building itself for existing homes.
The GreenHome Institute reviews the full documentation package and certifies the result at the earned level, Certified through Platinum, plus any badges the project achieved.
The certification is recorded where appraisers, agents, and future buyers can find it, attached to the address rather than filed in a drawer.
Project profile on the Institute's channels, press support, badge recognition, and an optional plaque. Your project becomes part of the certified record — like the nine on our case studies page.
When proof matters
A certified home walks into negotiation with third-party documentation of what's behind the drywall. Uncertified upgrades are a story; certification is a record.
Every listing says "energy efficient." Buyers discount all of it equally. Verification is the only green claim that survives skepticism.
Grant reports, LIHTC compliance, council presentations — "certified, with before-and-after scores" answers questions that photos of new furnaces never will.
You followed the checklist. Did it work? Testing answers with numbers: air changes per hour, radon levels, HERS.
See it in the field: nine certified projects with their numbers on record →
Straight answers
Yes, genuinely, and forever. The standard is published free on purpose. Certification exists for the moments when someone else needs to believe you: a buyer, a lender, a funder, a skeptical spouse.
Fees are published on the pricing page: a set schedule by project type, with lower rates for GreenHome Institute members. A single-family certification starts at $425 for members; multifamily is built up building by building. The inquiry is free and non-binding, and the Institute confirms an exact quote for your project. As a 501(c)(3), its fees fund the mission that keeps the standard free to use.
Earlier is cheaper. Projects that register before construction or renovation begins catch issues on paper instead of in drywall. Mid-project and completed-project paths exist, but the design phase is where certification costs the least and helps the most.
Good, it counts. GreenStar is built to stack: ratings, energy models, and program certificates you already hold carry much of the documentation load, so you're paying only for the gap.
Tell the Institute about your project, whether it's a new build, a renovation, or a portfolio, and get a real quote and a real plan. No commitment until you're ready.
