Existing 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 2012 International Existing 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
2012 Seattle Existing Building Code
This is a read-only version of the 2012 Seattle Existing Building Code. You can buy a full version from iccsafe.org.
- Table of Contents
- Chapter 1, Scope and Administration
- Chapter 2, Definitions
- Chapter 3, Provisions for all Compliance Methods
- Chapter 4, Prescriptive Compliance Method
- Chapter 5, Classification of Work
- Chapter 6, Repairs
- Chapter 7, Alterations – Level 1
- Chapter 8, Alterations – Level 2
- Chapter 9, Alterations – Level 3
- Chapter 10, Change of Occupancy
- Chapter 11, Additions
- Chapter 12, Historic Buildings
- Chapter 13, Relocated or Moved Buildings
- Chapter 14, Performance Compliance Methods
- Chapter 15, Construction Safeguards
- Chapter 16, Referenced Standards
- Appendix A, Seismic Strengthening Provisions for Unreinforced Masonry Bearing Wall Buildings
- Appendix B, Supplementary Accessibility Requirements for Existing Buildings and Facilities
- Appendix C, Guidelines for the Wind Retrofit of Existing Buildings
We're updating the Seattle Existing Building Code. See our 2015 Seattle Codes Adoption page for our proposed changes.