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Costa Mesa, CA Fire Regulations: Brush Clearance (2026)

Some Restrictions
Compiled from the official code textEditor Martyn O'NeillLast verified September 2026

Key Facts

Requirement
Remove combustible vegetation
Enforcement
Costa Mesa Fire Department
Open Burning
Prohibited (SCAQMD Rule 444)
Non-Compliance
City may abate at owner's cost

Summary

Costa Mesa requires property owners to remove weeds, grass, and combustible vegetation capable of endangering property. The Costa Mesa Fire Department enforces vegetation management standards as part of the adopted fire code.

4291. (a) A person who owns, leases, controls, operates, or maintains a building or structure in the state responsibility area shall at all times do all of the following: (1) (A) Maintain defensible space of 100 feet from each side and from the front and rear of the structure, but not beyond the property line, except as provided in subparagraph (B). The amount of fuel modification necessary shall consider the flammability of the structure as affected by building material, building standards, location, and type of vegetation. Fuels shall be maintained and spaced in a condition so that a wildfire would be unlikely to ignite the structure.

Source: CMMC Fire ProtectionView official code

Full Breakdown

Under Costa Mesa's adopted fire code provisions, property owners must cut down and remove weeds, grass, vines, and other growth capable of being ignited and endangering property. Combustible vegetation near structures creates fire hazards and must be maintained. The Costa Mesa Fire Department enforces vegetation management standards and may issue notices for non-compliance. Property maintenance standards under CMMC also require keeping property free from rubbish, debris, and overgrown vegetation that creates nuisance conditions. Open burning of vegetation waste is prohibited under South Coast Air Quality Management District Rule 444. Cleared vegetation must be disposed of through proper waste management channels.

Violations & Fines

Failure to clear combustible vegetation results in fire code violations, notices to correct, and potential city abatement at the owner's expense. Creating fire hazards may result in criminal charges.

Frequently Asked Questions

What are the brush clearance requirements in Costa Mesa?
Property owners must remove weeds, grass, and other vegetation capable of being ignited and endangering property under the adopted fire code.
Can I burn cleared vegetation?
No. Open burning is prohibited in the South Coast Air Basin under SCAQMD Rule 444. Use proper yard waste disposal.

Sources & Official References

Other rules in Costa Mesa

All Costa Mesa rules

California rules heatmap·Compare Costa Mesa to another location·View the California fire regulations overview

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