Existing Building Code

See also: Building Code

What Is It?

The Seattle Existing Building Code (SEBC) provides minimum requirements for repair, alteration, change of occupancy, addition, and relocation of existing buildings. Seattle has adopted the 2018 International Existing Building Code, with amendments specific to our city.

What It Isn't

This code does not cover the design and construction of new buildings. Those regulations are found in the Seattle Building Code. This code also 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 Existing Building Code. You can buy a full version from iccsafe.org. Print copies are available for sale through the Seattle Services Portal.

The 2018 Seattle Existing Building Code contains substantial copyrighted material from the 2018 International Existing 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 Existing Building Code. You can buy a full version from iccsafe.org

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

Proposed Changes

We are proposing errata amendments for the 2018 Seattle Codes. See our 2018 Seattle Code Adoption web page for more information.