Seattle Department of Construction & Inspections
Nathan Torgelson, Director
2018 Seattle Code Adoption - Project Documents
We update construction codes to ensure that people in Seattle get to live, work and play in buildings that are safe, sustainable, and accessible.
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What & Why
Proposing potential changes for Seattle’s 2018 construction codes.
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Get Involved
Proposing potential changes for Seattle’s 2018 construction codes.
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Project Documents
Proposing potential changes for Seattle’s 2018 construction codes.
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Timeline
Proposing potential changes for Seattle’s 2018 construction codes.
Summary of Changes
2018 Seattle Construction Code Key Changes
Proposed Errata
- 2018 Seattle Building Code Table 2902.1, Minimum Number of Required Plumbing Fixtures
- 2018 Seattle Building Code, Plumbing Systems
Draft Code Documents
The City Council approved these draft codes. They went into effect on March 15, 2021. For final versions of the codes, see our Codes We Enforce page.
- Draft 2020 Seattle Boiler & Pressure Vessel Code
- Draft 2018 Seattle Building Code Amendments
- Draft 2020 Seattle Electrical Code Amendments
- Draft 2018 Seattle Energy Code Amendments
- Draft 2018 Seattle Existing Building Code Amendments
- Draft 2018 Seattle Fire Code Amendments
- Draft 2018 Seattle Fuel Gas Code Amendments
- Draft 2018 Seattle Mechanical Code Amendments
- Draft 2018 Seattle Residential Code Amendments
- Draft 2018 Uniform Plumbing Code Amendments
2018 Seattle Energy Code Public Meeting Documents
Meeting Notes
- August 27, 2020 Energy Code Amendments Public Meeting Notes
- September 10, 2020 2018 Washington and Seattle Energy Code Update Presentation
- September 10, 2020 Energy Code Amendments Public Meeting Notes
Public Comments
- All Public Comments (October 22, 2020)
- Summary of Public Comments
- C403-1-3 from Desai - SDCI
- C403-3-6 from Moore -HVI
- C404.2 from Corcoran - AHRI
- C404-2a from Spielman - Ecotope
- C404-2b from Spielman - Ecotope
- C404-2h from Ahee - Bradford White Corporation
- Energy Code Comments from Bates
- Energy Code Comments from Fields - Fields Holdings
- Energy Code Comments from Harlow - Lincoln Property Company
- Eneryg Code Comments from Hoyt
- Energy Code Comments from Kulzer
- Energy Code Comments from Hurd - Skip Stone
- Energy Code Comments - Lake Union Partners
- Energy Code Comments - Lake Union Partners (second comments)
- Energy Code Comments from Loo - Bellweather Housing
- Energy Code Comments from Rushing - Rushing
- Energy Code Comments from Rushing (Second comments) - Rushing
- Energy Code Comments from Rushing (Third coments) - Rushing
- Seattle Commercial Energy Code Comments from Sivarajan - Climate Solutions
- Seattle Commercial Energy Code Comments from Kocher - Rocky Mountain Institute
- Seattle Commercial Energy Code Comments from Connor - 350 Seattle Campaigns
- Seattle Commercial Energy Code Comments from Wheeless - NW Energy Coalition
- Seattle Commercial Energy Code Comments - Shift Zero
- Seattle Commercial Energy Code Comments - Washington Physicians for Social Responsibility
- Seattle Commercial Energy Code Comments from Townes - 43rd District Democratic Environmental Caucus
- Seattle Commercial Energy Code Comments from Townes (second comments) - 43rd District Democratic Environmental Caucus
- Letter in Support of Townes' Seattle Energy Code Comments from Kirkpatrick
- Letter in Support of Townes' Seattle Energy Code Comments from Wineman