Wildfire Zones: Rancho Cucamonga vs San Bernardino
How do wildfire zones rules compare between Rancho Cucamonga, CA and San Bernardino, CA?
Rancho Cucamonga and San Bernardino have similar restriction levels.
Rancho Cucamonga, CA
San Bernardino County
Much of northern Rancho Cucamonga lies in the Very High Fire Hazard Severity Zone. VHFHSZ properties face stricter defensible space, Class A roofing, and Chapter 7A ignition-resistant construction rules.
View full Rancho Cucamonga rules →San Bernardino, CA
San Bernardino County
The northern San Bernardino foothills are mapped by CAL FIRE as Very High Fire Hazard Severity Zones. VHFHSZ parcels must meet PRC 4291 defensible space and Chapter 7A wildfire construction rules.
View full San Bernardino rules →Key Facts Comparison
| Fact | Rancho Cucamonga | San Bernardino |
|---|---|---|
| VHFHSZ coverage | Northside foothills above Banyan, Etiwanda north of Highland | - |
| Chapter 7A construction | Required for new builds and major remodels in VHFHSZ | - |
| Defensible space | 100 feet under PRC 4291, Zone 0 under AB 3074 | - |
| Evacuation alerts | Sign up for Alert SBC and City Watch Rancho Cucamonga | - |
| Insurance note | Natural Hazard Disclosure required on real estate sales | - |
| Legal framework | - | CA PRC 4202 and Gov Code 51178 FHSZ mapping |
| Primary zone | - | VHFHSZ covers northern foothills and Waterman Canyon areas |
| Construction rules | - | CBC Chapter 7A ignition-resistant materials required |
| Seller disclosure | - | Civil Code 1103 VHFHSZ disclosure mandatory at sale |
| Insurance impact | - | VHFHSZ mapping drives carrier non-renewals and FAIR Plan use |
Highlighted rows indicate differences between cities.
Rancho Cucamonga FAQ
How do I find out if my Rancho Cucamonga home is in a wildfire zone?
Use the CAL FIRE Fire Hazard Severity Zone viewer by address. RCFPD can also confirm your zone and provide a hazard reduction checklist.
Do I have to retrofit my older Etiwanda home to Chapter 7A standards?
No, only new construction and substantial remodels trigger Chapter 7A. However, defensible space and AB 3074 Zone 0 rules apply to existing homes.
What are the evacuation routes from the foothills?
Primary routes are Day Creek Boulevard and Milliken Avenue southbound. Alternates include Etiwanda Avenue and Haven Avenue, with staging areas at Victoria Gardens and Central Park.
San Bernardino FAQ
How do I know if my San Bernardino property is in a VHFHSZ?
Use the OSFM Fire Hazard Severity Zone viewer or contact City of San Bernardino Community Development at (909) 384-5122 for a parcel-specific map.
What construction rules apply in a VHFHSZ?
New builds and substantial remodels must meet CBC Chapter 7A, including Class A roofs, ember-resistant vents, and ignition-resistant siding and eaves.
Must I disclose VHFHSZ status when selling my home?
Yes. California Civil Code 1103 requires a natural hazards disclosure showing VHFHSZ status and buyer responsibility for defensible space.
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