How San Leandro Handles Earthquake Safety: A Practical Guide

San Leandro maintains 151 local ordinances across all categories, and 4 of those deal specifically with earthquake safety. Here is a breakdown of what the city actually requires, what is prohibited, and where San Leandro falls on the strict-to-permissive spectrum compared to other cities.

Foundation Anchoring

San Leandro adopts the 2022 California Building Code through SLMC Title 7 Chapter 7-5. CBC Section 2308 (conventional light-frame construction) and Appendix Chapter A3 of the California Existing Building Code govern bolting wood-framed homes to their foundations. The City is in Seismic Design Category D and E due to the adjacent Hayward Fault.

Key details: Code Section: SLMC 7-5 adopting CBC 2308 and CEBC App. A3. Bolt Spacing (new): 1/2-in bolts at 6 ft o.c., 3-in plate washers in SDC D+. Retrofit Standard: CEBC Appendix Chapter A3 (Plan Set A). Grant Program: CEA Brace + Bolt (up to $3,000). Mandatory?: No (voluntary for single-family).

New construction without conforming anchor bolts will fail framing inspection and cannot proceed. Voluntary retrofits done without a permit may violate SLMC 7-5; the City can require demolition of unpermitted work or after-the-fact permits at double fees.

Unreinforced Masonry

California's URM Law (Government Code 8875 et seq.) required San Leandro and all SDC D/E jurisdictions to inventory unreinforced masonry buildings and adopt a mitigation program. San Leandro adopted Chapter 4 of the State's Guidelines for Seismic Retrofit of Existing Buildings in September 2002, applying retrofit triggers to identified URM structures.

Key details: State Law: Cal. Gov Code 8875-8875.10 (URM Law). Local Adoption: Sept. 2002, SSC Guidelines Chapter 4. Retrofit Standard: CEBC Appendix Chapter A1. Target Areas: Pre-1933 brick on E. 14th St., Davis St.. New URM Construction: Prohibited.

Failure to comply with a retrofit notice can result in the property being declared a substandard or dangerous building under California Health and Safety Code 17920.3 and SLMC Title 7. The Building Official may post the building, restrict occupancy, or order vacation. Owners may face civil liability if injuries result during an earthquake on a non-compliant URM property.

Seismic Gas Shutoff

California Health and Safety Code 19200-19205 and California Building Code 1.8.5 require seismic gas shutoff valves for certain new construction and major alterations. In San Leandro, PG&E and the City Building & Safety Division enforce these triggers under SLMC Title 7 Chapter 7-5.

Key details: State Law: Cal. H&S Code 19200-19205; CBC 1.8.5. Standard: ASCE 25-certified valve. Trigger - Alteration: $10,000+ and gas piping work. Installation Location: Downstream of PG&E meter. Typical Cost: $200 - $700 installed.

Major alterations performed without the required gas shutoff valve will fail final inspection and cannot receive a certificate of occupancy. Selling a property after a triggered alteration without the valve installed may give rise to civil disclosure claims under California Civil Code 1102.

Soft-Story Retrofit

San Leandro Ordinance 24-495 (adopted December 2024) added Article 16 to SLMC Title 7 Chapter 7-5 (Building Code), creating a mandatory Earthquake Hazard Reduction program for existing wood-frame residential buildings with soft, weak, or open-front ground-story walls. Owners must submit a structural-adequacy analysis within 18 months of receiving City notice.

Key details: Code Section: SLMC 7-5, Article 16 (Ord. 24-495). Adopted: December 2024. Submission Deadline: 18 months from notice of compliance. Retrofit Standard: 2022 CEBC Appendix Chapter A4. Seismic Design Category: D and E (Hayward Fault).

Failure to comply within the specified deadlines is a violation of SLMC Title 7 enforced by the Building Official. Penalties include administrative citations, lien recordings, and potential orders to vacate hazardous structures under California Health and Safety Code 17920.3 (substandard housing). Owners may also face civil liability following a damaging earthquake if the building was non-compliant.

This is not one of those rules that cities tend to ignore. San Leandro actively enforces its soft-story retrofit requirements.

The Bottom Line

San Leandro's earthquake safety rules are a mixed bag. Some areas are strict, others are relaxed, and the details matter. The best approach is to check the specific rule that applies to your situation rather than assuming San Leandro is broadly strict or permissive.

These rules come from San Leandro's publicly available municipal code. For complete penalty schedules, exemption details, and answers to common questions, see the individual ordinance pages throughout this guide.