APEX GRIDENGINEERING · ARCHITECTURE · GC
Los Angeles, CA · Seismic Retrofit

Seismic Retrofit Engineering in Los Angeles

Los Angeles seismic retrofit engineering serves the city's mandatory soft-story and non-ductile concrete retrofit programs — structural evaluation, retrofit design, and permit packages for LADBS's compliance deadlines.

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Need a PE stamp in Los Angeles?

Permit stuck waiting on a seal? Apex Grid's licensed engineers provide fast Seismic Retrofit Engineering review-and-seal for drawings in Los Angeles and across Los Angeles County — reviewed under responsible charge and sealed for submittal to Los Angeles Department of Building and Safety (LADBS). Typical turnaround is 3–5 business days once we have a complete package.

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Illustrative map diagram marking an Apex Grid Engineering service location with a map pin over a street grid. Service location shown: Los Angeles, California.

What We Engineer

Verified Local Sources

Reviewed 2026-09-11. Code editions and local requirements can change; confirm the current requirements with the authority having jurisdiction before design.

Permit authorityAdopted codesAdopted codesAdopted codesAdopted codesLocal amendmentsUtilitiesUtilitiesClimateMarket context

Local Engineering Context

Authority Having Jurisdiction
Los Angeles Department of Building and Safety (LADBS)
Building Code
2022 CBC; LA Ordinance 183893 (soft-story) and Ordinance 184081 (non-ductile concrete)
Energy Code
N/A
Local Market
LADBS has mandatory retrofit ordinances for soft-story wood-frame buildings and non-ductile concrete buildings — thousands of buildings in LA are subject to compliance deadlines, creating significant retrofit engineering demand.
Climate & Engineering Conditions
High seismic hazard — SDC D to F; site-specific seismic hazard assessment is standard on retrofit projects; liquefaction and slope-stability must be evaluated for vulnerable sites.

About Apex Grid Engineering

Apex Grid Engineering is licensed in 49 states — every U.S. state except Alaska. Engineering stamping and licensure are confirmed for each project jurisdiction. We provide structural, MEP, civil, and geotechnical engineering for commercial, industrial, multifamily, and government clients.

We work from architectural PDFs, CAD files, or field measurements, and we're set up to turn projects around on compressed schedules when the situation calls for it.

Related services in Los Angeles: Structural Engineering

Los Angeles Seismic Retrofit Engineering Questions

What does Seismic Retrofit Engineering in Los Angeles include?
Los Angeles seismic retrofit engineering serves the city's mandatory soft-story and non-ductile concrete retrofit programs — structural evaluation, retrofit design, and permit packages for LADBS's compliance deadlines.
Who reviews Los Angeles engineering permit documents?
Los Angeles Department of Building and Safety (LADBS) is the listed authority having jurisdiction for this service area. The exact reviewer and submittal path should be confirmed for the project address before design begins.
Which building and energy codes apply in Los Angeles?
The listed building-code basis is 2022 CBC; LA Ordinance 183893 (soft-story) and Ordinance 184081 (non-ductile concrete), and the listed energy-code basis is N/A. Project-specific amendments and effective dates should be verified with the permitting authority.

Ready to Start in Los Angeles?

Send us your drawings or describe your project and we'll respond within one business day.

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Reviewed and sealed by licensed PEs. “Solid engineering and clear communication from start to finish.” — Jason Mitchell, Principal Architect

Tell us what you need and where the project is — quotes back within 12–24 hours on qualifying scopes.