Updated : 04/22/2024

Overview

Marin County adopted the 2013 California Building Standards Code. Marin County, Cal., Muni Code § 19.04.010.

Helpful resources for Marin County, California include the following.

• Jurisdiction's Information Page(s):
  • Community Development Agency
• PLRB, Ordinance and Law Coverage Discussion for California

Residential Building Code

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

Marin County adopted the 2012 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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2022 California Residential Code (2021 IRC)(Marin County, CA 16.16.040 - Amendments made to the 2022 California Fire Code, 2021 International Fire Code and 2021 International Wildland-Urban Interface Code.)

...102.5 of Chapter 1 is hereby amended to read as follows: Section 102.5 Application of residential code. Where structures are designed and constructed in accordance with the California Residential Code, the provisions of this code shall apply as follows: 1....

Drip Edge

Drip Edge: Yes

Ice Barrier

Comments

Marin County adopted the 2013 California Residential Code. Marin County, Cal., Muni Code § 19.04.010. The County adopted Appendices H and J of the 2012 IRC. Id. 

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.

Marin County adopted Appendix J of the 2012 IRC. Marin County, Cal., Muni Code § 19.04.010. The County adopted the 2013 California Historical Building Code. Id.

Commercial Building Code

Marin County adopted the 2012 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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2022 California Bldg. Code, Part 2 (2021 IBC)(Marin County, CA Municipal Code)

...Adoption not found...

Comments

Main County adopted 2013 California Building Code. Marin County, Cal., Muni Code § 19.04.010.

Existing Buildings

Marin County adopted the 2013 California Existing Building Code, with Appendix Chapters A1 and A3 of the 2012 IEBC. Marin County, Cal., Muni Code § 19.04.010. The County adopted the 2013 California Historical Building Code. Id.