Wildfire Zones: San Diego vs Vista
How do wildfire zones rules compare between San Diego, CA and Vista, CA?
San Diego and Vista have similar restriction levels.
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 →Vista, CA
San Diego County
Portions of Vista are designated as Wildland-Urban Interface (WUI) zones, requiring enhanced fire-resistant construction, defensible space clearance, and vegetation management. Vista Fire Department enforces these standards under California Fire Code and local amendments.
View full Vista rules →Key Facts Comparison
| Fact | San Diego | Vista |
|---|---|---|
| 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) | - |
| Fire Zones | - | VHFHSZ in eastern hillsides |
| Defensible Space | - | 100 ft required (PRC 4291) |
| Zone 1 Clearance | - | 0–30 ft lean, clean, green |
| New Construction | - | CBC Chapter 7A fire-resistant |
| Contact | - | Vista Fire (760) 643-5400 |
Highlighted rows indicate differences between cities.
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.
Vista FAQ
Is my Vista property in a wildfire zone?
Eastern hillside areas and properties near open space in Vista may be in Very High Fire Hazard Severity Zones. Contact Vista Fire at (760) 643-5400 or check CAL FIRE's FHSZ maps.
How much defensible space is required in Vista?
Properties in fire hazard zones must maintain 100 feet of defensible space: Zone 1 (0–30 ft) lean, clean, and green; Zone 2 (30–100 ft) fuel reduction and plant spacing.
Does wildfire zoning affect building permits in Vista?
Yes. New construction and major remodels in WUI zones must comply with CBC Chapter 7A fire-resistant standards for roofing, walls, windows, and decks.
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