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Building Tune-Up Deadlines
(Nonresidential Buildings 50,000+ Square Feet)
Owners of Cohort 3 buildings (70,000–99,999 SF) must complete their second cycle tune-up by 10/1/2025. Alternatively, Cohort 3 building owners planning to apply for an extension, waiver, and alternative compliance request must do so by 4/1/2025. We encourage you to review our guidelines, as most pathways require work to be completed before applying. View the Alternative Compliance handout (PDF) and the Extensions and Waivers resource (PDF) to learn more. Please note a new alternative compliance pathway exists for buildings that achieve early compliance with the WA State Clean Buildings Performance Standard (WA CBPS).
Owners of Cohort 2 buildings (100,000–199,999 SF) have until 4/1/2025 to submit a complete Tune-Up Summary Report before a first Notice of Violation with a $2,500 penalty will be issued. Owners of buildings that remain noncompliant after 10/1/2025 will receive a second Notice of Violation with a $10,000 penalty.
Reminder: The Building Tune-Ups law is sunsetting after the completion of the 2nd cycle of required tune-ups to avoid redundancy with the Operations and Maintenance requirements of the WA CBPS. For technical and compliance questions about Building Tune-Ups, contact our help desk.
Help Desk Contact Information
Energy Benchmarking: EnergyBenchmarking@seattle.gov | 206-727-8484
Building Tune-Ups: BuildingTuneUps@seattle.gov | 206-727-8863
Clean Buildings Performance Standard
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