Brush Clearance: El Cajon vs San Diego
How do brush clearance rules compare between El Cajon, CA and San Diego, CA?
El Cajon and San Diego have similar restriction levels.
El Cajon, CA
San Diego County
El Cajon requires 100-foot defensible space per PRC Section 4291. Heartland Fire & Rescue enforces brush management. The East County valley climate with hot summers and Santa Ana winds creates critical fire risk.
View full El Cajon rules →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 →Key Facts Comparison
| Fact | El Cajon | San Diego |
|---|---|---|
| Clearance | 100 ft (PRC §4291) | - |
| Zone 1 | 0-35 ft, no flammables | - |
| Zone 2 | 35-100 ft, thin | - |
| Fire Dept | Heartland Fire & Rescue | - |
| 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 |
Highlighted rows indicate differences between cities.
El Cajon FAQ
Does El Cajon require brush clearance?
Yes. 100 feet of defensible space is required per PRC Section 4291. Heartland Fire & Rescue conducts annual inspections.
How tall can grass be?
Annual grass must be cut to a maximum of 4 inches. Tree branches must be cleared at least 6 feet from the ground.
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.
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