Kennewick, Washington Building Codes

Updated : 04/22/2024

Overview

Kennewick, Washington, adopted the International Residential Code, including Appendix G and K, with amendments. Kennewick, WA, Muni. Code §15.08.010 (adoption) and §§15.08.020-10.08.140 (amendments). Kennewick, Washington, adopted the International Building Code, including Appendix C and J, with amendments. Kennewick, WA, Muni. Code §15.08.010 (adoption) and §§15.08.020-10.08.140 (amendments). No local adoption of the IEBC was located; however, Washington adopted the 2015 IEBC, by amending the reference to the IEBC in Sec. 101.4.7 of the 2018 IBC. Wash. Admin. Code § 51-50-007.

Note that the 2018 edition is the current effective code until March 15, 2024, when the 2021 edition will become effective. See PLRBWashington Building Codes.

 

Helpful resources for Kennewick, Washington include the following.

Residential Building Code

Washington adopted a statewide mandatory residential code that will control; however, local governments are free to make laws more strict (with some limitations).See PLRB, Washington Building Codes for more information on state level codes.

Kennewick adopted the 2018 IRC, locally. Note that adoptions usually come with amendments. So, it is important to review those amendments in addition to the unamended model code.

You can find a copy of the model code here.

You can find information about amendments to the model code here.

Auto Search - beta:

2021 Washington State Residential Code (2021 IRC)(Kennewick, WA 15.06.010: - Adoption of Building Codes.)

...together with all amendments as currently enacted, or as shall be enacted by the State of Washington, are hereby adopted as, and are herein referred to as, the building codes of the City of Kennewick; provided, that all additions, deletions, and amendments as set forth in this title are also adopted....

Drip Edge

Drip Edge: yes

Ice Barrier

Are ice barriers required for Kennewick ? Unclear
Comments:

No amendment to Table R301.2(1) was located in the municipal code or city website. Therefore, it is unclear if ice barrier underlayment is required.

Comments

Kennewick, Washington, adopted the 2018 International Residential Code, including Appendix G and K, with amendments. Kennewick, WA, Muni. Code §15.08.010 (adoption) and §§15.08.020-10.08.140 (amendments). Note that the 2018 edition is the current effective code until March 15, 2024, when the 2021 edition will become effective. See PLRBWashington Building Codes

Existing Buildings

Existing buildings, meaning buildings that were built in accordance to code at the time of construction, typically merit extra consideration in a current updated code.

No adoption of Appendix J was found in the municipal code or city website. 

No local adoption of the IEBC was located; however, Washington adopted the 2015 IEBC, by amending the reference to the IEBC in Sec. 101.4.7 of the 2018 IBC. Wash. Admin. Code § 51-50-007. Note that the 2015 edition is the current effective code until March 15, 2024, when the 2021 edition will become effective. See PLRBWashington Building Codes.

Commercial Building Code

Kennewick adopted the 2018 IBC, locally. Note that adoptions usually come with amendments. So, it is important to review those amendments in addition to the unamended model code.

You can find a copy of the code here.You can find information about amendments to the model code here.

Auto Search - beta:

2021 Washington State Building Code (2021 IBC)(Kennewick, WA Municipal Code)

...Adoption not found...

Comments

Kennewick, Washington, adopted the International Building Code, including Appendix C and J, with amendments. Kennewick, WA, Muni. Code §15.08.010 (adoption) and §§15.08.020-10.08.140 (amendments). Note that the 2018 edition is the current effective code until March 15, 2024, when the 2021 edition will become effective. See PLRBWashington Building Codes.

 

Existing Buildings

No local adoption of the IEBC was located; however, Washington adopted the 2015 IEBC, by amending the reference to the IEBC in Sec. 101.4.7 of the 2018 IBC. Wash. Admin. Code § 51-50-007. Note that the 2015 edition is the current effective code until March 15, 2024, when the 2021 edition will become effective. See PLRBWashington Building Codes.

 

Other Building Codes

Kennewick, Washington, adopted the 2018 Uniform Plumbing Code, with amendments. Kennewick, WA, Muni. Code §15.40.010 (adoption) and §§15.40.020-15.40.070 (amendments).

Kennewick, Washington, adopted the 2018 Washington State Energy Code. Kennewick, WA, Muni. Code §​15.66.010 (adoption). 

Kennewick, Washington, adopted the 2018 International Mechanical Code. Kennewick, WA, Muni. Code §15.12.010 (adoption) and §15.12.030 (amendments).

Kennewick, Washington, adopted the 2018 International Fuel Gas Code. Kennewick, WA, Muni. Code §15.12.010 (adoption) and §15.12.030 (amendments).

Kennewick, Washington, adopted the 2018 Ventilation and Indoor Air Quality Code. Kennewick, WA, Muni. Code §15.14.010 (adoption).

Kennewick, Washington, adopted the 2018 International Fire Code Appendices B, C, D, E, and F. Kennewick, WA, Muni. Code §15.30.010 (adoption).

Kennewick, Washington, adopted the state electrical code. See Labor & Industries (L&I), “Electrical Laws, Rules & Policies.” Licensing & Permits, Lni.wa.gov (state codes), and Kennewick, WA, Muni. Code §15.48.010 (local adoption).

Kennewick, Washington, adopted the Washington State Building Codes. Kennewick, WA, Muni. Code §15.06.010 (adoption). See PLRBWashington Building Codes. Note that the 2018 edition is the current effective code until March 15, 2024, when the 2021 edition will become effective. See PLRBWashington Building Codes