LA County addresses tilt-up concrete buildings through voluntary ASCE 41-17 evaluation rather than a mandatory retrofit ordinance. LACoDPW guidance focuses on wall-to-roof anchorage failures observed in 1971 Sylmar and 1994 Northridge earthquakes for pre-1976 structures.
Tilt-up concrete buildings — common warehouses, light industrial, and big-box retail constructed by tilting precast wall panels into place — performed poorly in the 1971 Sylmar and 1994 Northridge earthquakes, with wall panels separating from wood roof diaphragms. The 1976 UBC introduced positive direct anchorage requirements that significantly improved performance. LA County has not adopted a mandatory retrofit ordinance for pre-1976 tilt-ups in unincorporated areas, unlike LA City Ordinance 184081. LACoDPW Building & Safety encourages voluntary upgrades using ASCE 41-17 Tier 1 screening followed by Tier 2 or 3 analysis. Common retrofits add subdiaphragm chord ties and continuous cross ties through the diaphragm.
No mandatory retrofit penalties apply in unincorporated areas. Owners face premises-liability exposure after seismic damage. Insurance carriers and CMBS lenders frequently require ASCE 41-17 evaluations as a condition of policy or refinancing.
South San Gabriel, CA
South San Gabriel is an unincorporated community in Los Angeles County, so amplified music is governed by County Code Title 12, Chapter 12.08 (Noise Control)...
Los Angeles County, CA
The 2022 LA County Curb Management Strategy prioritizes pickup and dropoff over parking and loading in commercial corridors. DPW retrofits curb zones using a...
Los Angeles County, CA
LA County Code Title 12.84 bans expanded polystyrene takeout containers at unincorporated-area food businesses. California AB-1201 sets ASTM compostability l...
Los Angeles County, CA
LA County Code Title 12.84 (Ord. 2008-0006) bans expanded polystyrene foam cups at all county facilities and food vendors operating on county property. Calif...
Los Angeles County, CA
California AB-1276 prohibits restaurants and food vendors from automatically providing single-use foodware accessories. Utensils, straws, condiments, and sti...
Los Angeles County, CA
FilmLA processes commercial filming permits for unincorporated LA County, coordinating with Public Works on road closures, LA County Sheriff for traffic and ...
Side-by-side rule comparisons with other cities in Los Angeles County.
See how South San Gabriel's tilt-up concrete retrofit rules stack up against other locations.
Help us keep this page accurate. If you notice an error or outdated information, let us know.