2021 Seattle Code Adoption- Timeline

SDCI Proposed Changes

The effective date for the 2021 Seattle codes is no sooner than September 30, 2024. Until then, applicants may use either the 2018 or draft 2021 Seattle codes. The Mayor’s office is evaluating further code amendments at this time. Once the Construction Codes Advisory Board approves the full suite of 2021 codes, the ordinance will still need to go through the standard ordinance review and approval process for adoption. We do not have a timeline yet for final CCAB approval. Please visit the 2021 Seattle Code Adoption webpage for updates.


The 2021 editions of the Seattle construction codes are expected to go into effect no sooner than October 2, 2023. 

Construction and Inspections

Nathan Torgelson, Director
Address: 700 5th Ave, Suite 2000, Seattle, WA, 98104
Mailing Address: P.O. Box 34019, Seattle, WA, 98124-4019
Phone: (206) 684-8600
Phone Alt: Violation Complaint Line: (206) 615-0808
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SDCI issues land use, construction, and trade permits, conducts construction and housing-related inspections, ensures compliance with our codes, and regulates rental rules. SDCI is committed to an antiracist workplace and to addressing racism through our work in the community.