San Marcos Municipal Code Ch. 17.30 California Existing Building Code

The 2025 California Existing Building Code, California Code of Regulations, Title 24, Part 10, based on the International Existing Building Code, 2021 Edition, copyrighted by the International Code Council, is adopted by reference.

(Ord. No. 2016-1431, 10-25-2016; Ord. No. 2019-1478, Exh. A, § 1.M, 10-22-2019; Ord. No. 2022-1526, § 1.M(Exh. A), 10-25-2022; Ord. No. 2025-1575, § 1.K(Exh. B), 1-13-2026)

Section 405 of the California Existing Building Code is amended by adding Section 405.3 which reads as follows:

Scope. Repairs of structural elements shall comply with this section.

Seismic Evaluation and Design. Seismic evaluation and design of an existing building and its components shall be based on the following criteria.

Evaluation and Design Procedures. The seismic evaluation and design shall be based on the following procedures:

As specified in Chapter 16 of the latest adopted building code.

American Society of Civil Engineers 31, Seismic Evaluation for Existing Building (for evaluation only).

American Society of Civil Engineers 41, Seismic Rehabilitation of Existing Buildings.

The procedures contained in Appendix Chapter A2 and A3 of the International Building Code and Appendix Chapter A1 of the California Existing Building Code shall be permitted to be used as specified in ASCE 41 (mentioned above).

Unsafe Conditions. Regardless of the extent of structural damage, unsafe conditions shall be eliminated.

Change in Occupancy. When a building or portion thereof is subject to a change of occupancy, such that the change results in a higher seismic factor based on Table 1604.5 of the building code, or when a reclassification is proposed with a higher hazard occupancy, the building shall conform to the seismic requirements of the latest adopted building code for a new structure.

(Ord. No. 2022-1526, § 1.M(Exh. A), 10-25-2022)