Wildfire Zones: Bonsall vs San Diego
How do wildfire zones rules compare between Bonsall, CA and San Diego, CA?
Bonsall and San Diego 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 →San Diego, CA
San Diego County
San Diego has extensive Very High Fire Hazard Severity Zones (VHFHSZ) due to its canyon-rim topography and Santa Ana wind exposure. SDMC §142.0412 establishes a comprehensive brush management program with Zone 1 (0-35 ft from structures) requiring fire-resistant, maintained plantings and Zone 2 (35-100 ft) requiring 50% vegetation reduction. The Fire-Rescue Department conducts door-to-door brush assessments for properties along canyon rims in VHFHSZs.
View full San Diego rules →Key Facts Comparison
| Fact | Bonsall | San Diego |
|---|---|---|
| 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) | - |
| Authority | County Fire Authority reviews permits | - |
| Code Section | - | SDMC §142.0412 |
| Zone 1 | - | 0-35 ft: fire-resistant, low-growing plants maintained year-round |
| Zone 2 | - | 35-100 ft: remove dead vegetation; reduce coverage by 50% |
| VHFHSZ | - | Canyon rims and hillside areas throughout the city |
| Real Estate | - | Defensible space inspection required at sale per CA CC 1102.19(a) |
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.
San Diego FAQ
Who enforces brush management in San Diego?
The San Diego Fire-Rescue Department conducts annual door-to-door assessments in VHFHSZ areas. Properties outside the program are assessed on a complaint basis.
Do I need an inspection to sell property in a fire zone?
Yes. California Civil Code 1102.19(a) requires documentation of a compliant defensible space inspection per SDMC §142.0412 or CA Fire Code before close of escrow since July 1, 2021.
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