Updated : 04/22/2024
Overview
Snohomish County, Washington, adopted the 2018 International Residential Code (IRC), including Appendices F, Q, and U, with amendments. Snohomish County, WA, Muni. Code § 30.52F.010 (adoption) and § 30.52F.300 (amendments). Snohomish County, Washington, adopted the 2018 International Building Code (IBC), including Appendix E and C, with amendments. Snohomish County, WA, Muni. Code § 30.52A.010 (adoption) and §§30.52A.020 – 30.52A.306 (amendments). Snohomish County, Washington, adopted the 2018 International Existing Building Code (IEBC). Snohomish County, WA, Muni. Code § 30.52A.010 (adoption) and §30.52A.300 (amendments).
Note that the above codes are the current effective codes until March 15, 2024, when the 2021 edition will become effective. See PLRB, Washington Building Codes.
Helpful resources for Snohomish County, 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.
Snohomish County 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.
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2018 Washington State Residential Code (2018 IRC)(Snohomish County, WA Municipal Code)
...Adoption not found...
Drip Edge
Drip Edge: yes
Ice Barrier
Are ice barriers required for Snohomish County ? No
Citation: Table R 301.2(1) - amended.
Municipal Code
https://snohomish.county.codes/SCC/30.52F.300Comments:
The amendment to Table R301.2(1) in the IRC indicates that ice barriers are not required. Snohomish County, WA, Muni. Code § 30.52F.300 (amendments).
Comments
Snohomish County, Washington, adopted the 2018 International Residential Code (IRC), including Appendices F, Q, and U, with amendments. Snohomish County, WA, Muni. Code § 30.52F.010 (adoption) and § 30.52F.300 (amendments).
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.
Snohomish County, Washington, adopted the 2018 International Existing Building Code (IEBC). Snohomish County, WA, Muni. Code § 30.52A.010 (adoption) and §30.52A.300 (amendments).
Commercial Building Code
Snohomish County 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:
2018 Washington State Building Code (2018 IBC)(Snohomish County, WA Municipal Code)
...Adoption not found...
Comments
Snohomish County, Washington, adopted the 2018 International Building Code (IBC), including Appendix E and C, with amendments. Snohomish County, WA, Muni. Code § 30.52A.010 (adoption) and §§30.52A.020 – 30.52A.306 (amendments).
Existing Buildings
Snohomish County, Washington, adopted the 2018 International Existing Building Code (IEBC). Snohomish County, WA, Muni. Code § 30.52A.010 (adoption) and §30.52A.300 (amendments).
Other Building Codes
Snohomish County, Washington, adopted the 2009 ICC/ANSI A117.1 Accessible and Usable Buildings, and Facilities. Snohomish County, WA, Muni. Code § 30.52A.010 (adoption).
Snohomish County, Washington, adopted the 2018 International Swimming Pool and Spa Code (ISPSC). Snohomish County, WA, Muni. Code § 30.52A.010 (adoption).
Snohomish County, Washington, adopted the 2018 International Mechanical Code (IMC). Snohomish County, WA, Muni. Code § 30.52B.010 (adoption).
Snohomish County, Washington, adopted the 2018 Washington State Energy Code. Snohomish County, WA, Muni. Code § 30.52D.010 (adoption).
Snohomish County, Washington, adopted the 2018 Uniform Plumbing Code, including Appendices A, B, and I. Snohomish County, WA, Muni. Code § 30.52E.010 (adoption).
Snohomish County, Washington, adopted the 2018 International Fire Code. Snohomish County, WA, Muni. Code § 30.53A.010 (adoption) and § 30.53A.100- 30.53A.538 (amendments).
Snohomish County, Washington, adopted the 1997 Uniform Code for the Abatement of Dangerous Buildings. Snohomish County, WA, Muni. Code § 30.53B.010 (adoption) and § 30.53B.020-30.53B.060 (amendments).
Note that the above codes are the current effective codes until March 15, 2024, when the 2021 edition will become effective. See PLRB, Washington Building Codes.
