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Washington Clean Buildings Tier 2 guides
Plain-language summaries of Commerce's published rules, each linked to the official source. Last checked October 9, 2026. General information only, not legal or engineering advice. Evergreen Compliance is independent and not affiliated with the Washington State Department of Commerce.
Is my building Tier 2?
Check whether a Washington building is a Clean Buildings Tier 2 covered building: the 20,000 sq ft rule, multifamily, condos, exemptions and how to confirm in the Clean Buildings Portal.
Read the guideTier 2 deadline, penalties and incentive, explained
Washington Clean Buildings Tier 2: the July 1, 2027 deadline, what to submit, extensions, the $0.30/sq ft penalty cap and the early adopter incentive, with official sources.
Read the guideTier 2 for condo associations
How Washington's Clean Buildings Tier 2 applies to condo and HOA associations: common space over 20,000 sq ft, who the owner is, penalties, incentives and next steps.
Read the guideTier 2 for owners of one or two buildings
A plain guide for families and small LLCs that own one or two Washington multifamily buildings over 20,000 sq ft: who is responsible, what's due July 1, 2027, the incentive and the options.
Read the guideWhat a Qualified Energy Manager (QEM) does
Who can be a Qualified Energy Manager for Washington Clean Buildings Tier 2, what the QEM signs and submits, and the free QEM training dates.
Read the guideTier 2 extension vs. compliance: which is right?
Washington Clean Buildings Tier 2 extensions: who qualifies, the six-month application window, the Extension Reporting Tool, and how an extension compares with complying by July 1, 2027.
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Want to know where your building stands?
Send us a building name or address and we'll reply with a free one-page Building Snapshot: our preliminary assessment of likely Tier 2 status from public information (for the owner or QEM to confirm), the deadline, the potential maximum penalty, an incentive estimate and a to‑do list. If you go ahead, we prepare draft documents on Commerce's templates for your QEM to review, revise, approve and submit.