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Fresno County, CA Environmental Rules: Defensible Space (2026)

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

Key Facts

Firebreak radius
30 feet around dwellings
Propane tank clearance
10 feet
Enforcement season
April 15 to September 30
Covered area
San Joaquin bluffs, Hwy 99-41 corridor
Legal status of violation
public nuisance
Enforcing official
legally authorized fire official

Summary

Fresno County requires owners of specific parcels along the San Joaquin River bluffs between Highways 99 and 41 to maintain a 30-foot firebreak around every inhabited dwelling from April 15 through September 30 each year, treating failure to do so as a public nuisance under County Code § 8.80.030.

City-specific rules exist: Fresno has its own defensible space rules that differ from Fresno County's county-level regulations. If you live in Fresno, check the city-specific page instead.

Any person, corporation or other entity owning, leasing, occupying or directly controlling or having charge of any property subject to this article shall comply with the following standards for maintaining defensible space with respect to the area surrounding any inhabited dwellings and structures from April 15 through September 30 of each year as follows: A.Maintain a firebreak by removing and clearing away dangerous accumulation of flammable vegetation and other combustible growth within thirty feet of each inhabited dwelling and structure.

View official code

Official source re-checked September 7, 2026: no newer edition of the code had been published (publisher’s edition: Code of Ordinances: Supplement 51).

Full Breakdown

010). 030 requires every owner, lessee, or occupant to 'maintain a firebreak by removing and clearing away dangerous accumulation of flammable vegetation and other combustible growth within thirty feet of each inhabited dwelling and structure,' seasonally, from April 15 through September 30. 030(C)). 030(B)). 040 separately declares it 'unlawful and a public nuisance' to maintain flammable vegetation within 30 feet of an occupied dwelling that blocks the firebreak, or within 10 feet of a propane tank. S. Forest Service and National Park Service officers, following that agency's own procedures. Ordinance No. 10-018, adopted September 14, 2010, created this chapter.

Violations & Fines

Maintaining flammable vegetation within 30 feet of an occupied dwelling, or within 10 feet of a propane tank, in the covered San Joaquin bluffs area is declared a public nuisance under § 8.80.040, enforceable by the legally authorized fire official under § 8.80.050 through that agency's own abatement procedures.

Frequently Asked Questions

Which Fresno County properties must maintain defensible space along the San Joaquin River?
Only parcels within a specific corridor between Highway 99 and Highway 41, running from the river's centerline south to the Fresno city limits, plus 18 named Assessor's Parcel Numbers listed in § 8.80.010. It does not apply countywide.
How wide does the firebreak have to be?
Thirty feet around every inhabited dwelling and structure, cleared of dangerous accumulations of flammable vegetation and combustible growth, under § 8.80.030(A), maintained seasonally from April 15 through September 30 each year.
Do I have to cut down healthy trees to comply?
No. Section 8.80.030(C) exempts well-pruned single specimen trees and vegetation maintained so it doesn't spread fire, along with habitat for protected species, natural wildlife areas, sensitive open space, and cultivated agricultural or grazing land.
What happens if I don't clear the firebreak?
Flammable vegetation left within 30 feet of an occupied dwelling, or within 10 feet of a propane tank, is declared a public nuisance under § 8.80.040, subject to abatement by the legally authorized fire official under § 8.80.050.

Sources & Official References

Other rules in Fresno County

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