Updated : 04/22/2024

Overview

Richland, Washington, adopted the 2018 International Residential Code with state amendments. Richland, WA, Muni. Code § 21.01.010(D) (adoption). Richland, Washington, adopted the 2018 International Building Code including Appendix J with state amendments. Richland, WA, Muni. Code § 21.01.010(A) (adoption). Richland, Washington, adopted the 2015 International Existing Building Code with state amendments. Richland, WA, Muni. Code § 21.01.010(C) (adoption). Note that Washington adopted the 2015 IEBC, by amending the reference to the IEBC in Section 101.4.7 of the 2018 IBC. 

Note that the above codes are the current effective codes until March 15, 2024, when the 2021 editions will become effective. See PLRB, Washington Building Codes, and Revised Code of Wash. § 19.27.031 (state codes). 

 

Helpful resources for Richland, Washington include the following.

• Jurisdiction's Information Page(s):
  • Richland, 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.

Richland 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 Richland, WA Municipal Code)

...Adoption not found...

Drip Edge

Drip Edge: yes

Ice Barrier

Are ice barriers required for Richland ? Yes
Comments:

No amendment to the IRC Table 301.2 was found in the municipal code. However, a climate design criteria was found on the Richland City website.

IRC TABLE R301.2(1) CLIMATIC AND GEOGRAPHIC DESIGN CRITERIA

Ground Snow Load: 20 psf

Wind Design Speed (mph): Vult = 110

Topographic Effects: No

Exposure Category: C

Special Wind Region: No

Seismic Design Category: C

Subject to Damage From Weathering: Severe

Frost Line Depth: 24 inches

Termite: No

Winter Design Temperature: 2°

Ice Barrier Underlayment Required: Yes

Flood Hazards: Entered March 1, 1984 (See GIS Maps)

Air Freezing index: 661

Mean Annual Temperature: 54.6°

Richland, WA, "Design Criteria.” Permit Information and Regulations. Accessed October 26, 2023. www.ci.richland.wa.us/home/showpublisheddocument/978/637702281283870000.

Government Officials

Comments

Richland, Washington, adopted the 2018 International Residential Code with state amendments. Richland, WA, Muni. Code § 21.01.010(D) (adoption) and §§21.01.020-21.01.070 (administration, permitting, and fees). Note that the 2018 IRC is the current effective code until March 15, 2024, when the 2021 editions will become effective. See PLRB, Washington Building Codes, and Revised Code of Wash. § 19.27.031 (state 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 regarding existing buildings was found in the municipal code or city website. 

Richland, Washington, adopted the 2015 International Existing Building Code with state amendments. Richland, WA, Muni. Code § 21.01.010(C) (adoption). Note that Washington adopted the 2015 IEBC, by amending the reference to the IEBC in Section 101.4.7 of the 2018 IBC. Also, note that the above codes are the current effective codes until March 15, 2024, when the 2021 editions will become effective. See PLRB, Washington Building Codes, and Revised Code of Wash. § 19.27.031 (state codes). 

 

Commercial Building Code

Richland 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.

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2018 Washington State Building Code (2018 IBC)(City of Richland, WA Municipal Code)

...Adoption not found...

Comments

Richland, Washington, adopted the 2018 International Building Code, including Appendix J, with state amendments. Richland, WA, Muni. Code § 21.01.010(A) (adoption) and §§21.01.020-21.01.070 (administration, permitting, and fees). Note that the 2018 IBC is the current effective code until March 15, 2024, when the 2021 editions will become effective. See PLRB, Washington Building Codes, and Revised Code of Wash. § 19.27.031 (state codes). 

Existing Buildings

Richland, Washington, adopted the 2015 International Existing Building Code with state amendments. Richland, WA, Muni. Code § 21.01.010(C) (adoption). Note that Washington adopted the 2015 IEBC, by amending the reference to the IEBC in Section 101.4.7 of the 2018 IBC. Also, note that the 2015 IEBC is the current effective code until March 15, 2024, when the 2021 editions will become effective. See PLRB, Washington Building Codes, and Revised Code of Wash. § 19.27.031 (state codes). 

Other Building Codes