Brush Clearance: San Diego vs Vista
How do brush clearance 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 requires 100 feet of defensible space around all structures in Very High Fire Severity Zones under SDMC 142.0412. Three fuel modification zones apply. Properties must be cleared by June 1 annually. New AB 3074 Zone 0 requirements (0-5 ft ember-resistant zone) effective 2027.
View full San Diego rules →Vista, CA
San Diego County
Vista requires defensible space of 100 feet around structures per PRC 4291. The city maintains a Fire Hazard Severity Zone Map. Fire-wise landscaping required in the 30-foot Green Zone. Highly flammable mulch is prohibited.
View full Vista rules →Key Facts Comparison
| Fact | San Diego | Vista |
|---|---|---|
| Clearance Zone | 100 feet from structures | - |
| Zone 0 (AB 3074) | 0-5 ft ember-resistant | - |
| Annual Deadline | June 1 | - |
| Grass Height | Cut to ~2 inches | - |
| Code Section | SDMC 142.0412 | - |
| Clearance | - | 100 ft from structures |
| Green Zone | - | 30 ft flammable-free |
| Mulch | - | Flammable types prohibited |
| FHSZ Map | - | Available on city website |
Highlighted rows indicate differences between cities.
San Diego FAQ
How far do I need to clear brush around my home in San Diego?
100 feet of defensible space in three zones under SDMC 142.0412, if your property is in a Very High Fire Severity Zone. All dead vegetation must be removed.
What is Zone 0 under AB 3074?
A new 0-5 foot ember-resistant zone immediately around structures. New construction must comply as of February 2026; existing homes by February 2027.
Vista FAQ
Is my Vista property in a fire hazard zone?
Check Vista's Fire Hazard Severity Zone Map on the city website or the CAL FIRE FHSZ viewer.
How much clearance do I need?
100 feet of defensible space around structures. The first 30 feet (Green Zone) must be free of all flammable materials.
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