Monterey County Municipal Code Ch. 18.02.5 Residential Code

Footnotes:

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Editor's note— Ord. No. 5442, § 5, adopted Dec. 9, 2025, repealed Ch. 18.02.5, §§ 18.02.5.010—18.02.5.070, and enacted a new Ch. 18.02.5 to read as set out herein. Former Ch. 18.02.5 pertained to similar subject matter and derived from Ord. No. 5286, § 6, adopted April 18, 2017; Ord. No. 5337, §§ 2, 6, adopted July 28, 2020; and Ord. No. 5389, adopted Dec. 6, 2022.

That certain document entitled 2025 California Residential Code, California Code of Regulations, Title 24, Part 2.5, excluding Chapter 1 and including Appendices H, Q, and X as published by the California Building Standards Commission, which is based on the 2024 International Residential Code with applicable amendments from the State of California, and the local amendments of this Chapter, are hereby adopted as the Residential Code for the County of Monterey.

(Ord. No. 5442, § 5, 12-9-2025)

Notwithstanding any provisions of the 2025 California Residential Code to the contrary, the local amendments in this Chapter shall apply.

(Ord. No. 5442, § 5, 12-9-2025)

Fire sprinkler requirements shall also conform to the local amendments of the Fire Code in Chapter 18.09 of the Monterey County Code.

(Ord. No. 5442, § 5, 12-9-2025)

Roofing requirements shall also conform to the local amendments of the Fire Code in Chapter 18.09 of the Monterey County Code.

Section R902.1.3 of the California Residential Code is deleted in its entirety and replaced with the following:

R902.1.3 Roof coverings in all other areas. The entire roof covering of every existing structure where more than 50 percent of the total roof area is replaced within any one-year period, the entire roof covering of every new structure, and any roof covering applied in the alteration, repair or replacement of the roof of every existing structure, shall be a fire-retardant roof covering that is at least Class B.

(Ord. No. 5442, § 5, 12-9-2025)

Solar Photovoltaic System requirements shall also conform to the local amendments of the Fire Code in Chapter 18.09 of the Monterey County Code.

(Ord. No. 5442, § 5, 12-9-2025)

A. Section R403.1.3 of the California Residential Code, first paragraph shall be deleted in its entirety and replaced with the following:

R403.1.3 Footing and stem wall reinforcing in Seismic Design Categories D0, D1, and D2.Concrete footings located in Seismic Design Categories D0, D1 and D2, as established in Table R301.2 (1), shall have minimum reinforcement of at least two continuous longitudinal reinforcing bars, one top and one bottom and not smaller than No. 4 bars. Bottom reinforcement shall be located a minimum of three inches (76 mm) clear from the bottom of the footing.

B. California Residential Code Table R602.10.3(3) footnote "e" shall be deleted in its entirety and replaced with the following:

Table R602.10.3(3) Footnote e.

In Seismic Design Categories D0, D1, and D2, Method GB is not permitted, and the use of Method PCP is limited to one-story single-family dwellings and accessory structures.

C. The Title to California Residential Code Table R602.10.3 shall be deleted in its entirety and replaced with the following:

TABLE R602.10.3(3)e

D. Section R602.10.4 of the California Residential Code shall be amended to add Section R602.10.4.5 to read as follows:

R602.10.4.5 Limits on methods GB and PCP. In Seismic Design Categories D0, D1, and D2, Method GB is not permitted for use as intermittent braced wall panels, but gypsum board is permitted to be installed when required by this Section to be placed on the opposite side of the studs from other types of braced wall panel sheathing. In Seismic Design Categories D0, D1, and D2, the use of Method PCP is limited to one-story single-family dwellings and accessory structures.

a. Design methods for conventional light frame construction. The design of structural members may use the provisions of California Building Code Section 2308.

(Ord. No. 5442, § 5, 12-9-2025)