Brush Clearance: Irvine vs Midway City
How do brush clearance rules compare between Irvine, CA and Midway City, CA?
Irvine has fewer restrictions than Midway City.
Irvine, CA
Orange County
Irvine enforces vegetation management under IMC Title 4, Division 4 (Fire) and the California Fire Code. Properties in Fire Hazard Severity Zones must maintain 100 feet of defensible space per California PRC Section 4291.
View full Irvine rules →Midway City, CA
Orange County
Property owners in unincorporated Orange County must maintain 100 feet of defensible space around structures per California Public Resources Code Section 4291 and OCFA vegetation management guidelines. Zone 0 (0–5 feet) requires an ember-resistant zone with no combustible materials.
View full Midway City rules →Key Facts Comparison
| Fact | Irvine | Midway City |
|---|---|---|
| Defensible Space | 100 ft in FHSZ areas | - |
| Zone 1 | 0-30 ft: remove dead vegetation | 5–30 ft: lean/clean/green |
| Zone 2 | 30-100 ft: reduce density | 30–100 ft: reduced fuel |
| FHSZ Map Updated | 2025 (expanded areas) | - |
| Enforcement | OCFA | - |
| State Law | - | PRC §4291 |
| Total Distance | - | 100 feet from structure |
| Zone 0 | - | 0–5 ft: ember-resistant |
| Fine Range | - | $100–$2,000 |
Highlighted rows indicate differences between cities.
Irvine FAQ
Is my Irvine property in a fire hazard zone?
Irvine updated its FHSZ maps in 2025. Check the city's Fire Hazard Severity Zone Map to see if your property is in a Moderate, High, or Very High zone.
How much brush clearance is required?
Properties in FHSZ areas must maintain 100 feet of defensible space, with stricter requirements in the first 30 feet from structures.
Midway City FAQ
How much brush clearance is required in unincorporated Orange County?
100 feet of defensible space from all structures per PRC Section 4291. Zone 0 (0-5 feet) must be ember-resistant with no combustibles. Zone 1 (5-30 feet) must be clean and green. Zone 2 (30-100 feet) requires reduced fuel.
What happens if I don't clear brush on my Orange County property?
OCFA inspects annually in high-risk zones. Non-compliant owners receive a 30-day Notice of Violation. Penalties range from $100 to $2,000, and OCFA may clear the property at the owner's expense and lien the property.
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