Skip to main content

SDCI offices are closed to the public.

Most services are available online through our Virtual Applicant Services Center. We offer limited access to our offices for scheduled public meetings.

Building Code

See also: Code Interpretations, Electrical Code, Existing Building Code, Elevator Code, Energy Code, Fire Code, Mechanical CodeResidential Code

What Is It?

The Seattle Building Code (SBC) provides minimum requirements for design and construction of new buildings. Seattle has adopted the 2018 International Building Code, with amendments specific to our city.

What It Isn't

This code does not cover regulations for single-family houses, duplexes, and townhouses with up to three stories and separate entrances. Those regulations are found in the Seattle Residential Code.

Read The Code

This is a read-only version of the 2018 Seattle Building Code with errata. 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 Building Code contains substantial copyrighted material from the 2018 International Building 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 Building Code. You can buy a full version from iccsafe.org

The 2015 Seattle Building Code contains substantial copyrighted material from the 2015 International Building 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 Building Code

This is a read-only version of the 2012 Seattle Building Code. You can buy a full version from iccsafe.org.

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
Contact Us

Newsletter Updates

Subscribe

Sign up for the latest updates from Construction and Inspections

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.