Fire History
Los Angeles County has experienced some of the most destructive wildfires in California history. The January 2025 Palisades and Eaton fires destroyed over 16,000 structures across Pacific Palisades, Altadena, and surrounding communities. Prior major fires include the 2018 Woolsey Fire (96,949 acres, 3 counties), the 2009 Station Fire (160,577 acres, the largest in LA County history), and the 2003 Old Fire. The county's mix of dense urban-wildland interface, Santa Ana wind events, and aging hillside development creates persistent high-risk conditions.
Local Compliance Notes
LA County operates under both the Los Angeles County Fire Department (unincorporated areas) and dozens of city fire departments. The January 2025 fires have accelerated local adoption of FHSZ maps and are expected to result in earlier Phase 2 deadlines than the statewide default. Homeowners in Pacific Palisades, Altadena, Malibu, Topanga, and other hillside communities should anticipate near-term enforcement activity.
Neighborhoods in Zone Zero
High-FHSZ communities in LA County include Pacific Palisades, Malibu, Topanga, Altadena, Tujunga, Sylmar, Chatsworth, Granada Hills, Arcadia foothills, Glendora foothills, San Dimas, Claremont, Azusa, and communities along the Santa Monica Mountains. Specific neighborhood FHSZ maps are available at the CAL FIRE FHSZ viewer.
Local FAQs
Does the Palisades or Eaton fire area have different Zone Zero rules? No — Zone Zero requirements are statewide and apply equally across all FHSZ properties. However, rebuilding permits in the fire area will trigger immediate Zone Zero compliance for new construction. Contact LA County Fire or your city fire department for jurisdiction-specific guidance.