Wildfire Zones: Hesperia vs Victorville
How do wildfire zones rules compare between Hesperia, CA and Victorville, CA?
Hesperia and Victorville have similar restriction levels.
Hesperia, CA
San Bernardino County
Updated CAL FIRE/OSFM Fire Hazard Severity Zone maps significantly expanded Very High Fire Hazard Severity Zones (VHFHSZ) in Hesperia effective July 22, 2025. Properties in VHFHSZ must comply with Chapter 7A of the California Building Code (WUI ignition-resistant construction) and PRC §4291 defensible space.
View full Hesperia rules →Victorville, CA
San Bernardino County
Parts of Victorville fall within or near CAL FIRE Very High Fire Hazard Severity Zones, especially along foothill and desert-wildland interface areas. CBC Chapter 7A and PRC 4291 apply to zoned parcels.
View full Victorville rules →Key Facts Comparison
| Fact | Hesperia | Victorville |
|---|---|---|
| Zone Designation | Expanded VHFHSZ effective July 22, 2025 | - |
| Authority | CAL FIRE/OSFM + SB County Fire (LRA) | - |
| Building Standard | CBC Chapter 7A (WUI construction) | - |
| Defensible Space | 100 ft per PRC §4291 | - |
| Zone 0 | 0–5 ft ember-resistant (AB 3074) | - |
| Disclosure | AB 38 buyer disclosure required in VHFHSZ | - |
| CAL FIRE status | - | VHFHSZ on foothill and WUI fringe |
| Chapter 7A | - | Required in mapped zones |
| PRC 4291 | - | 100-foot defensible space |
| AB 38 | - | Sale disclosure for pre-2010 homes |
| Map check | - | CAL FIRE FHSZ viewer |
Highlighted rows indicate differences between cities.
Hesperia FAQ
Is my Hesperia property in a wildfire zone?
Possibly. Updated VHFHSZ maps took effect July 22, 2025 and expanded coverage significantly. Check the CAL FIRE OSFM FHSZ viewer or City of Hesperia Building & Safety, and review Hesperia Information Bulletin IB-25-002.
What construction standards apply in VHFHSZ?
California Building Code Chapter 7A: ignition-resistant exterior walls, Class A roof, dual-pane tempered glass windows, ember-resistant vents (1/16–1/8 in mesh), protected eaves, and non-combustible decking near structures.
Do I have to disclose VHFHSZ when selling?
Yes. AB 38 (2019) requires sellers to disclose VHFHSZ designation to buyers and, for homes built before 2010, provide a home-hardening disclosure as part of the Natural Hazard Disclosure Statement.
What is Zone 0?
Zone 0 is the 0–5 ft ember-resistant zone immediately around a structure, mandated by AB 3074 (2020) and regulated by the California Board of Forestry. Combustible materials (wood mulch, fences attached to the home, stored items) must be removed.
Victorville FAQ
Is my Victorville home in a wildfire zone?
Many Victorville parcels are on the desert floor outside VHFHSZ, but foothill and wildland-interface neighborhoods are mapped. Always verify on the CAL FIRE FHSZ viewer for your specific address.
Do I need Chapter 7A ignition-resistant siding in Victorville?
Only if your parcel is mapped in a Very High Fire Hazard Severity Zone. New construction and major rebuilds in those zones must use Class A roofing, ember-resistant vents, and approved exterior materials.
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