Updated : 04/22/2024
Overview
Napa County adopted parts of the 2013 California Building Standards Code: the California Building Code, California Residential Code, California Electrical Code, California Mechanical Code, California Plumbing Code, California Energy Code, California Historical Building Code, California Fire Code, and California Green Building Standards Code. Napa County, Cal., Muni Code §§ 15.12.010, 15.28.010, 15.24.010, 15.20.010, 15.29.010, 15.30.010, 15.32.010, and 15.14.010,
Helpful resources for Napa County, California include the following.
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.
Napa 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.
Auto Search - beta:
2022 California Residential Code (2021 IRC)(Napa County, CA 15.12.010 - Document adopted by reference.)
...The 2022 Edition of the California Residential Code including Appendices AH, AQ, AS,
and AW, hereinafter referred to as "residential code," which is based on the 2021
International Residential Code adopted with modifications by the State of California
as Title 24, Part 2.5 of the California Code of Regulations....
Drip Edge
Drip Edge: Yes
Ice Barrier
Comments
Napa County adopted Appendix H [Patio Covers] of the 2013 California Residential Code. Napa County, Cal., Muni Code § 15.12.010.
Amended provisions for Roofs as follows:
Section R902.1.3 of the California Residential Code was amended by substituting the words "Class C" with "Class A".
(Ord. No. 1350, § 6, 11-23-2010, eff. 12-23-2010)
Napa County, Cal., Muni Code § 15.12.220
Commercial Building Code
Napa County adopted the 2012 IBC, statewide with limitations. 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:
2022 California Bldg. Code, Part 2 (2021 IBC)(Napa County, CA Municipal Code)
...Adoption not found...
Comments
Amended provisions for Roofs as follows:
Section 1505.1.3 of the California Building Code was amended by substituting the words "Class C" with "Class A".
(Ord. No. 1350, § 6, 11-23-2010, eff. 12-23-2010)
Napa County, Cal., Muni Code § 15.12.220
