Updated : 04/22/2024

Overview

Walla Walla County, Washington, adopted the "Current" International Residential Code (IRC), including Appendix G, with amendments. Walla Walla County, WA, Muni. Code § 15.04.030 (state code adoption), § 15.04.040 (local adoption) and §§ 15.04.050-15.04.080 (amendments). Note that the 2018 edition is the current effective code until March 15, 2024, when the 2021 edition will become effective. See PLRB, Washington Building Codes. Walla Walla County, Washington, adopted the "Current" International Building Code (IBC), including Appendices C and J, with amendments. Walla Walla County, WA, Muni. Code § 15.04.030 (state code adoption), § 15.04.040 (local adoption), §§ 15.04.050-15.04.080 (amendments), and §§ 15.04.400-15.04.440 (appendix J amendments). Note that the 2018 edition is the current effective code until March 15, 2024, when the 2021 edition will become effective. See PLRB, Washington Building Codes. Walla Walla County, Washington, adopted the "Current" International Existing Building Code (IEBC). Walla Walla County, WA, Muni. Code § 15.04.030 (state code adoption). Note that Washington adopted the 2015 IEBC, by amending the reference to the IEBC in Section 101.4.7 of the 2018 IBC. The 2015 edition is the current effective code until March 15, 2024, when the 2021 edition will become effective. See PLRB, Washington Building Codes, and Wash. Admin. Code § 51-50-007, 

Helpful resources for Walla Walla County, Washington include the following.

• Jurisdiction's Information Page(s):
  • Walla Walla County, Washington Municipal Code
• PLRB, Ordinance and Law Coverage Discussion for Washington

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.

Walla Walla 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)(City of Walla Walla, WA Municipal Code)

...Adoption not found...

Drip Edge

Drip Edge: yes

Ice Barrier

Are ice barriers required for Walla Walla County ? Yes
Comments:

The adoption of the residential code included an amendment stating that ice barrier underlayment is required at the eaves.

A. An ice shield will be required to be installed at the time of a reroof on all roofs with a pitch of five to twelve or less.

B. A new home will require an ice shield on all roofs with a pitch of four to twelve or less.

 Walla Walla County, WA, Muni. Code § 15.04.070 (Additional roofing requirements).

Comments

Walla Walla County, Washington, adopted the "Current" International Residential Code (IRC), including Appendix G, with amendments. Walla Walla County, WA, Muni. Code § 15.04.030 (state code adoption), § 15.04.040 (local adoption), and §§ 15.04.050-15.04.080 (amendments). Note that the 2018 edition is the current effective code until March 15, 2024, when the 2021 edition will become effective. See PLRB, Washington 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. 

Walla Walla County, Washington, adopted the "Current" International Existing Building Code (IEBC). Walla Walla County, WA, Muni. Code § 15.04.030 (state code adoption). Note that Washington adopted the 2015 IEBC, by amending the reference to the IEBC in Section 101.4.7 of the 2018 IBC. The 2015 edition is the current effective code until March 15, 2024, when the 2021 edition will become effective. See PLRB, Washington Building Codes, and Wash. Admin. Code § 51-50-007, 

Commercial Building Code

Walla Walla 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)(City of Walla Walla, WA Municipal Code)

...Adoption not found...

Comments

Walla Walla County, Washington, adopted the "Current" International Building Code (IBC), including Appendices C and J, with amendments. Walla Walla County, WA, Muni. Code § 15.04.030 (state code adoption), § 15.04.040 (local adoption), §§ 15.04.050-15.04.080 (amendments), and §§15.04.400-15.04.440 (appendix J amendments).

Existing Buildings

Walla Walla County, Washington, adopted the "Current" International Existing Building Code (IEBC). Walla Walla County, WA, Muni. Code § 15.04.030 (state code adoption). Note that Washington adopted the 2015 IEBC, by amending the reference to the IEBC in Section 101.4.7 of the 2018 IBC. The 2015 edition is the current effective code until March 15, 2024, when the 2021 edition will become effective. See PLRB, Washington Building Codes, and Wash. Admin. Code § 51-50-007, 

Other Building Codes