Wildfire Zones: Bonsall vs Carlsbad
How do wildfire zones rules compare between Bonsall, CA and Carlsbad, CA?
Bonsall and Carlsbad have similar restriction levels.
Bonsall, CA
San Diego County
Much of unincorporated San Diego County is designated as a Very High Fire Hazard Severity Zone (VHFHSZ) by CAL FIRE. Properties in these zones must meet enhanced building standards, defensible space requirements, and fire-resistant landscaping per the County's Consolidated Fire Code.
View full Bonsall rules →Carlsbad, CA
San Diego County
Updated FHSZ maps. New buildings in Very High zones: 100 ft defensible space + ignition-resistant construction. AB-38 inspections for real estate. Coastal location reduces but does not eliminate risk.
View full Carlsbad rules →Key Facts Comparison
| Fact | Bonsall | Carlsbad |
|---|---|---|
| Designation | CAL FIRE Very High Fire Hazard Severity Zone | - |
| Building Code | CBC Chapter 7A — exterior wildfire exposure | - |
| Materials | Fire-resistant roofing, walls, windows, decking | - |
| Defensible Space | 100 ft required (Zones 0/1/2) | 100 ft (Very High) |
| Authority | County Fire Authority reviews permits | - |
| FHSZ Maps | - | Updated |
| AB-38 | - | Real estate inspections |
| Construction | - | Ignition-resistant (Ch. 7A) |
| Fire Dept | - | carlsbadca.gov/fire |
Highlighted rows indicate differences between cities.
Bonsall FAQ
Is my property in a wildfire zone in San Diego County?
Many properties in unincorporated San Diego County are in Very High Fire Hazard Severity Zones. Check the CAL FIRE Fire Hazard Severity Zone map or contact County Planning & Development Services with your property address.
What building materials are required in wildfire zones?
Properties in VHFHSZ must use fire-resistant roofing (Class A), ignition-resistant exterior walls, tempered or multi-pane windows, and non-combustible decking materials per California Building Code Chapter 7A.
Do wildfire zone requirements apply to existing homes?
Existing homes are generally grandfathered but must comply with defensible space requirements. Major remodels, additions, or roof replacements trigger compliance with current fire-resistant building standards.
Carlsbad FAQ
Fire zones in Carlsbad?
Yes. Updated maps identify Very High areas despite coastal location.
Selling home?
AB-38 requires inspection in High/Very High zones.
New construction?
100 ft defensible space + ignition-resistant materials.
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