Energy Benchmarking

Seattle's Energy Benchmarking Law (Seattle Municipal Code 22.920) requires owners of non-residential and multifamily buildings (greater than 20,000 square feet) to track energy performance and annually report to the City of Seattle. Owners must report each calendar year of benchmarking data by June 1st of the following year. See the Seattle Energy Benchmarking Fact Sheet for more information. 

The City of Seattle annually publishes building energy and emissions performance data from more than 3,600 of Seattle's largest nonresidential and multifamily buildings representing 375 million square feet at data.seattle.gov and through the Seattle Energy Benchmarking Map to facilitate transparency in the market and spur demand for energy efficiency.

The Reporting Year 2023 cycle has now concluded. The City of Seattle has stopped updating the RY2023 Compliance Portal and is no longer accepting appeals for Notices of Violation.

The compliance deadline for Reporting Year 2024 is June 1, 2025 and the Compliance Portal will be posted in March 2025.

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Sustainability and Environment

Jessyn Farrell, Director
Address: 700 5th Avenue, #1868, Seattle, WA, 98104
Mailing Address: PO Box 94729, Seattle, WA, 98124-4729
Phone: (206) 256-5158
OSE@seattle.gov

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We collaborate with City agencies, business groups, nonprofit organizations, and other partners to protect and enhance Seattle's distinctive environmental quality and livability.