Wildfire Zones: Los Angeles vs San Francisco
How do wildfire zones rules compare between Los Angeles, CA and San Francisco, CA?
San Francisco has fewer restrictions than Los Angeles.
Los Angeles, CA
Los Angeles County
Approximately one-third of LA city land is mapped as Very High Fire Hazard Severity Zone. Properties in VHFHSZ face mandatory brush clearance, enhanced building standards (fire-resistant roofing, ignition-resistant materials), and restrictions on ADU construction in hillside areas. LAFD enforces compliance through annual inspections and abatement programs.
View full Los Angeles rules →San Francisco, CA
San Francisco County
San Francisco has minimal designated State Responsibility Area wildfire hazard zones due to its dense urban character. Cal Fire Fire Hazard Severity Zone maps show only small areas near Mt. Davidson, Twin Peaks, and the Presidio edges as moderate/high wildfire risk. Defensible-space rules apply in those few zones.
View full San Francisco rules →Key Facts Comparison
| Fact | Los Angeles | San Francisco |
|---|---|---|
| VHFHSZ Coverage | Approx. 1/3 of city land | - |
| Building Standards | Fire-resistant materials required | - |
| ADU Restriction | Limited in VHFHSZ + hillside areas | - |
| Roofing | Class A fire-rated required | - |
| Enforcement | LAFD annual inspections | - |
| - | - |
Highlighted rows indicate differences between cities.
Los Angeles FAQ
Is my property in a fire zone?
Check LAFD's Brush Clearance map or CAL FIRE FHSZ maps. Most hillside properties in LA are VHFHSZ.
What happened after the Palisades Fire?
The city expanded brush clearance zones, added stricter building codes, and enhanced evacuation planning for hillside communities.
San Francisco FAQ
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