San Jose's Earthquake Safety: The Rules That Matter

Every city handles earthquake safety a little differently. In San Jose, California, there are 6 distinct rules that residents and property owners should be aware of. Some are stricter than what neighboring cities enforce, and others are more relaxed. Here is what you need to know.

Non-Ductile Concrete Retrofit

San Jose has a limited inventory of pre-1980 non-ductile concrete buildings and has not adopted a mandatory retrofit ordinance. Voluntary seismic evaluations are encouraged following ASCE 41 standards, with statewide AB-2681 requiring jurisdictions to inventory at-risk concrete buildings.

Key details: Status: Voluntary, no mandate. State law: AB-2681 inventory required. Standard: ASCE 41 Tier 1 evaluation. At-risk era: Pre-1980 concrete frames. Local mandate: None adopted by San Jose.

No active mandatory retrofit penalties. Owners ignoring known structural deficiencies face civil liability after earthquake damage and may be cited under SJMC Title 17 dangerous-building provisions if inspectors find imminent hazards.

San Jose is more permissive than most cities when it comes to non-ductile concrete retrofit. That said, there are still limits.

Balcony Inspection Program

California SB-721 and SB-326 (the Balcony Bill) require statewide periodic inspections of exterior elevated elements (balconies, decks, walkways) on multifamily buildings of three or more units, with the first inspection due January 1, 2025.

Key details: Rental law: SB-721 H&S §17973. HOA law: SB-326 Civil §5551. Cycle: 6 years rentals; 9 HOA. First deadline: January 1, 2025. Trigger: 3+ units with EEEs.

Failure to inspect by deadline can trigger civil penalties up to $500 per day, building-code citations under SJMC Title 17, and personal-injury liability for owners; immediate hazards require shoring or balcony closure.

Compared to other cities, San Jose takes a harder line on balcony inspection program. The enforcement and penalty structure reflects that.

Soft-Story Retrofit

San Jose's mandatory soft-story retrofit ordinance (No. 31123) targets approximately 3,500 wood-frame buildings containing about 25,000 housing units. Originally effective April 1, 2025, City Council delayed the start to April 1, 2026. Buildings are divided into three groups: Group 1 (pre-1978, 5+ units) must complete retrofit by April 2031, Group 2 (1978-1990, 5+ units) by April 2032, and Group 3 (pre-1990, 3+ units) by April 2033.

Key details: Ordinance: No. 31123. Buildings Affected: ~3,500 (25,000 units). Effective Date: April 1, 2026 (delayed). Group 1 Deadline: April 2031. Group 2 Deadline: April 2032.

Non-compliance after deadlines: escalating enforcement including fines, orders to vacate, and potential demolition orders. Specific penalty schedule to be established by the Building Division. Screening report failure: separate citation for non-compliance with initial assessment requirements.

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

Foundation Anchoring

San Jose follows the California Existing Building Code (CEBC) Chapter A3 for foundation anchoring of older wood-frame homes. Pre-1978 homes without bolted sill plates should be anchored to foundations. The state Earthquake Brace + Bolt (EBB) program offers up to $3,000 in incentives for qualifying homeowners in high-risk San Jose ZIP codes near the Hayward and Calaveras faults.

Key details: Code: CEBC Chapter A3. EBB Incentive: Up to $3,000. Target Homes: Pre-1978 wood-frame. Nearby Faults: Hayward, Calaveras. Trigger: Renovations >50% replacement cost.

Failure to retrofit when triggered by renovation: stop-work order on renovation project. No standalone enforcement for existing homes without a renovation trigger. Point-of-sale disclosure required under California law for known seismic deficiencies.

Unreinforced Masonry

San Jose follows the California Unreinforced Masonry Building Law (Government Code §8875) requiring identification and mitigation of URM buildings constructed before 1934. Under San Jose Municipal Code and CEBC provisions, URM building owners must post earthquake risk notices and may be required to retrofit or demolish. San Jose has a relatively small URM inventory compared to older California cities.

Key details: State Law: Gov. Code §8875. Pre-1933 Buildings: October 6, 1933 cutoff. Notice Required: Earthquake risk posting. San Jose Inventory: Relatively small. Seismic Zone: Zone 4.

Failure to post earthquake risk notice: violation of Government Code §8875.8. Non-compliance with retrofit orders: orders to vacate and potential demolition. Major renovation without seismic upgrade: stop-work order.

Compared to other cities, San Jose takes a harder line on unreinforced masonry. The enforcement and penalty structure reflects that.

Seismic Gas Shutoff

San Jose follows California Plumbing Code and local building code requirements for seismic gas shutoff valves (SGSOV). Installation is required for new construction, certain permitted renovations, and at point of sale. Valves must be installed downstream of the gas meter and carry manufacturer warranties. San Jose is served by PG&E, which provides gas shutoff guidance for seismic safety.

Key details: Code: California Plumbing Code + SJMC. Gas Utility: PG&E. Location: Downstream of gas meter. Permit: Plumbing permit required. Nearby Faults: Hayward, Calaveras.

Building permit hold for non-compliance during new construction or renovation. Point-of-sale non-compliance: potential liability for gas-related damage in seismic event. Installation without permit: code violation citation.

The Bottom Line

San Jose is tougher than many cities when it comes to earthquake safety. Out of the 6 rules covered here, 3 are rated strict. If you are a homeowner, renter, or business owner in San Jose, take the time to understand these requirements before they become a problem. Most violations come with fines, and some repeat violations can escalate.

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