Wildfire Zones: Altadena vs Glendale
How do wildfire zones rules compare between Altadena, CA and Glendale, CA?
Altadena and Glendale have similar restriction levels.
Altadena, CA
Los Angeles County
Most of Altadena sits in CalFire-mapped Very High and High Fire Hazard Severity Zones — the January 2025 Eaton Fire destroyed thousands of structures here. Properties in these zones face heightened defensible-space, ember-resistant construction, and disclosure requirements.
View full Altadena rules →Glendale, CA
Los Angeles County
Glendale has significant wildland-urban interface (WUI) areas in its hillside neighborhoods. Properties in fire hazard zones must maintain defensible space and comply with enhanced building standards for fire resistance.
View full Glendale rules →Key Facts Comparison
| Fact | Altadena | Glendale |
|---|---|---|
| Authority | CalFire FHSZ Maps + LA County Title 32 | - |
| Construction Standard | CBC Chapter 7A in VHFHSZ | - |
| Disclosure | AB 38 required pre-2010 homes | - |
| Eaton Fire | January 2025 — Altadena devastated | - |
| WUI Areas | - | Hillside neighborhoods |
| Defensible Space | - | 100 ft required |
| Building Standards | - | Fire-resistant materials required |
| Inspections | - | Annual by Glendale Fire |
Highlighted rows indicate differences between cities.
Altadena FAQ
Is Altadena in a fire hazard zone?
Yes — most of Altadena north of Altadena Drive and into the foothills is in CalFire's Very High Fire Hazard Severity Zone, with additional High and Moderate areas mapped in 2024.
Glendale FAQ
Is my Glendale home in a fire zone?
Check CAL FIRE FHSZ maps. Most homes north of Glenoaks Blvd near the Verdugo Mountains are in VHFHSZ.
What building standards apply?
VHFHSZ properties require fire-resistant roofing, walls, vents, and decking per Chapter 7A.
Compare other topics
See how Altadena and Glendale compare on other ordinance categories.
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