Los Angeles's Earthquake Safety: The Rules That Matter
Every city handles earthquake safety a little differently. In Los Angeles, California, there are 9 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
LAMC §91.9509 (Ordinance 183893) requires identification and retrofit of pre-1976 non-ductile reinforced concrete buildings citywide, with a 25-year compliance deadline, structural evaluation by ASCE 41-17 standards, and LADBS-issued compliance certificates.
Key details: Code section: LAMC §91.9509. Buildings affected: Pre-1977 non-ductile concrete. Compliance deadline: 25 years from order. Evaluation standard: ASCE 41-17 Tier 1. Estimated count: About 1,400 buildings.
Missing the 3-year, 10-year, or 25-year milestones triggers LADBS substandard orders, recordation of non-compliance against title, daily fines, and potential vacate orders for unsafe occupancies.
This is not one of those rules that cities tend to ignore. Los Angeles actively enforces its non-ductile concrete retrofit requirements.
Wood-Frame Retrofit
LAMC §91.9504 mandates seismic retrofit of soft-story wood-frame multifamily buildings with tuck-under parking, while §91.9505 sets standards for cripple-wall and shear-wall reinforcement of older wood-frame structures across Los Angeles.
Key details: Soft-story section: LAMC §91.9504. Construction deadline: 7 years from order. Buildings affected: Pre-1978 multifamily wood frame. Single-family grant: Up to $3,000 EBB. Cost pass-through: Up to $38 monthly RSO.
Failure to file plans, complete construction within seven years, or maintain anchor inspections leads to LADBS substandard orders, recordation against title, $1,000+ fines, and tenant relocation requirements.
This is one of the stricter rules in Los Angeles's municipal code. If you are unsure whether your situation complies, it is worth checking with the city before proceeding.
Steel Moment-Frame Retrofit
Los Angeles encourages voluntary evaluation of pre-Northridge welded steel moment-frame buildings through LADBS Information Bulletin P/BC 2017-026, applying SAC-FEMA 350 series guidance. Some commercial leases and lender covenants make inspection effectively mandatory in Class A office space.
Key details: Guidance bulletin: LADBS P/BC 2017-026. Buildings affected: Pre-1995 welded steel moment. Standard: FEMA 350 / ASCE 41-17. City mandate: Voluntary only. Common driver: Lender or tenant due diligence.
Without a citywide mandate, enforcement is limited. Inspection failures usually surface in commercial diligence, prompting lender hold-backs, retrofit conditions, or insurance loadings rather than LADBS code violations.
Balcony Inspection Program
California Senate Bills 721 (apartments) and 326 (HOA condominiums) require periodic inspection of exterior elevated elements such as balconies, decks, walkways, and stair landings. Los Angeles enforcement runs through LADBS, with first inspections largely due in 2025.
Key details: Apartment law: SB-721, H&S §17973. HOA law: SB-326, Civil §5551. First deadline: January 1, 2025. Inspection cycle: Every 6 or 9 years. Sample size: Minimum 15 percent.
Skipping the inspection, missing the 2025 deadline, or ignoring an emergency repair order risks LADBS substandard designation, civil penalties under Health and Safety Code §17995, and personal liability for resulting injuries.
Compared to other cities, Los Angeles takes a harder line on balcony inspection program. The enforcement and penalty structure reflects that.
Tilt-Up Concrete Retrofit
LAMC §91.9105 directs LADBS to identify pre-1976 tilt-up concrete buildings and require ASCE 41-17 evaluation and wall-to-roof anchorage retrofit. The program parallels the URM ordinance, targeting warehouses, big-box retail, and industrial structures across Los Angeles.
Key details: Code section: LAMC §91.9105. Buildings affected: Pre-1976 tilt-up concrete. Evaluation standard: ASCE 41-17. Compliance window: Up to 25 years. Common building type: Warehouse, big-box retail.
Failure to evaluate, file retrofit plans, or complete construction within the LADBS milestones triggers substandard orders, recordation against title, daily fines, and possible vacate orders if a roof connection failure is imminent.
Compared to other cities, Los Angeles takes a harder line on tilt-up concrete retrofit. The enforcement and penalty structure reflects that.
Soft-Story Retrofit
LA's mandatory soft-story retrofit program under Ordinance 183893 (2015) requires approximately 13,500 wood-frame buildings with soft, weak, or open-front walls to be seismically strengthened. Priority 1 buildings (3+ stories with ground-floor commercial) had an April 2024 deadline. Priority 2 buildings (remaining soft-story) face an April 2026 deadline. Enforced by LADBS with escalating daily fines for non-compliance.
Key details: Ordinance: No. 183893 (2015). Buildings Affected: ~13,500 wood-frame. Pre-1978 Cutoff: Built before Jan 1, 1978. Priority 1 Deadline: April 2024. Priority 2 Deadline: April 2026.
Daily fines accumulating after deadline passes, potentially reaching tens of thousands of dollars. LADBS may issue Orders to Vacate for non-compliant buildings posing immediate danger. Criminal misdemeanor charges possible for willful non-compliance under LAMC.
This is not one of those rules that cities tend to ignore. Los Angeles actively enforces its soft-story retrofit requirements.
Foundation Anchoring
Los Angeles requires foundation bolting and cripple wall bracing for older wood-frame homes under Division 88 of the LA Building Code. Houses built before 1978 without bolted sill plates are most vulnerable. Standard Plan 1 (pre-approved by LADBS) covers bolt-only retrofits for single-family dwellings. The Earthquake Brace + Bolt (EBB) program offers up to $3,000 in incentives for qualifying homeowners.
Key details: Code: Division 88, CEBC Ch. A3. Standard Plan: LADBS Standard Plan 1. EBB Incentive: Up to $3,000. Trigger: Renovations >50% replacement cost. Target Homes: Pre-1978 wood-frame.
Failure to retrofit when triggered by renovation: stop-work order on the renovation project until compliance. No standalone enforcement for existing homes without a renovation trigger, but disclosure is required at point of sale.
Unreinforced Masonry
LA's Division 88 ordinance (1981) was one of the first mandatory URM retrofit programs in the U.S., targeting approximately 8,000 unreinforced masonry bearing wall buildings constructed before October 6, 1933. Owners were required to retrofit, vacate, or demolish. By the mid-1990s roughly 95% of covered buildings had been brought into compliance. Remaining non-compliant buildings face Orders to Vacate or demolition.
Key details: Code: Division 88, LA Building Code. Enacted: 1981. Buildings Covered: ~8,000 pre-1933 URM. Compliance Rate: ~95% by mid-1990s. Pre-1933 Cutoff: October 6, 1933.
Non-compliant buildings subject to Orders to Vacate. City may initiate demolition proceedings for buildings posing imminent danger. Daily fines under LAMC for failure to comply with Order to Comply notices.
Compared to other cities, Los Angeles takes a harder line on unreinforced masonry. The enforcement and penalty structure reflects that.
Seismic Gas Shutoff
LAMC §94.1217.0 requires seismic gas shutoff valves (SGSOV) or excess flow shutoff valves on all buildings with gas piping permitted on or after September 1, 1995. Valves are also required when commercial alterations exceed $10,000, when gas meters are altered, and within 12 months of any property sale. Valves must carry a 30-year warranty and be maintained for the life of the building.
Key details: Code: LAMC §94.1217.0. Effective: September 1, 1995. Sale Requirement: Install within 12 months. Commercial Trigger: Alterations >$10,000. Warranty: 30-year minimum.
Failure to install when required: building permit hold or code violation notice from LADBS. Sale transaction non-compliance: enforcement action and potential liability for gas-related damage in a seismic event. Typical installation cost: $300-$700 including permit.
This is one of the stricter rules in Los Angeles's municipal code. If you are unsure whether your situation complies, it is worth checking with the city before proceeding.
The Bottom Line
Los Angeles is tougher than many cities when it comes to earthquake safety. Out of the 9 rules covered here, 7 are rated strict. If you are a homeowner, renter, or business owner in Los Angeles, 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 Los Angeles's publicly available municipal code. For complete penalty schedules, exemption details, and answers to common questions, see the individual ordinance pages throughout this guide.