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Residential Code

See also: Building CodeCode Interpretations

What Is It?

The Seattle Residential Code (SRC) provides minimum requirements for design and construction of single-family houses, duplexes, and townhouses with no more than three stories and with separate entrances. Seattle has adopted the 2018 International Residential Code, with amendments specific to our jurisdiction.

What It Isn't

Requirements for design and construction of all other buildings are found in the Seattle Building Code and the Seattle Existing Building Code.

Read the Code

This is a read-only version of the 2018 Seattle Residential Code. You can buy a full pdf version from iccsafe.org. Print copies are available for sale through the Seattle Services Portal. See our pricelist and our ordering instructions.

The 2018 Seattle Residential Code contains substantial copyrighted material from the 2018 International Residential Code which is proprietary to and copyrighted by International Code Council, Inc. The licensed material is copyrighted by the International Code Council, Inc., has been obtained and reproduced with permission. The acronym “ICC” and the ICC logo are trademarks and service marks of ICC. ALL RIGHTS RESERVED.

This is a read-only version of the 2015 Seattle Residential Code. You can buy a full version from iccsafe.org.

The 2015 Seattle Residential Code contains substantial copyrighted material from the 2015 International Residential Code which is proprietary to and copyrighted by International Code Council, Inc. The licensed material is copyrighted by the International Code Council, Inc., has been obtained and reproduced with permission. The acronym “ICC” and the ICC logo are trademarks and service marks of ICC. ALL RIGHTS RESERVED.

2012 Seattle Residential Code

This is a read-only version of the 2012 Seattle Residential Code. You can buy a full version from iccsafe.org. Print copies are available for sale in our Public Resource Center.

Proposed Changes

We are reviewing the Seattle Codes to make changes for the 2021 Seattle Code update process, which will start in mid-2022.

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.