4-5-061 INTERNATIONAL EXISTING BUILDING CODE ADOPTED:

The 2021 International Existing Building Code (IEBC) is included in the adoption of the International Building Code as provided by IBC Section 101.4.7 and amended in WAC 51-50-480000, including Appendix A, Guidelines for the Seismic Retrofit of Existing Buildings, excluding Chapter 1, Part 2, Administration. The Construction Administrative Code, as set forth in RMC 4-5-060, shall be used in place of IEBC Chapter 1, Part 2, Administration. Provided, that detached one- and two (2) family dwellings and townhouses not more than three (3) stories above grade plane in height with a separate means of egress, and their accessory structures not more than three (3) stories above grade plane in height, shall comply with the International Residential Code. Provided, that the Washington State Energy Code and the International Wildland-Urban Interface Code shall be regulated according to the respective provisions for existing buildings. Provided, that work regulated by this code is also regulated by the construction requirements for existing buildings within Chapter 11 of the International Fire Code, such work shall comply with applicable requirements in both codes. (Ord. 6133, 3-4-2024)