Bostonia, CA Fire Regulations: Brush Clearance (2026)
Key Facts
- State law
- Public Resources Code 4291
- Clearance distance
- 100 feet around structures
- Minimum reduced distance
- No less than 30 feet
- Zone 0
- 0-5 ft ember-resistant
- County rule
- Defensible Space Ordinance
Summary
As unincorporated San Diego County, Bostonia properties must maintain defensible space around structures under California Public Resources Code 4291 and the County's Defensible Space Ordinance. State law requires clearing flammable vegetation to 100 feet around a building, with intensive fuel reduction closer in.
Maintain defensible space of 100 feet from each side and from the front and rear of the structure, but not beyond the property line.
Full Breakdown
PRC 4291 requires anyone owning a building in, upon, or adjoining a mountainous, forest, brush, or grass-covered area to maintain 100 feet of defensible space. San Diego County's Defensible Space for Fire Protection Ordinance mirrors this and prohibits accumulating combustible vegetation, dead or dying trees, and rubbish within 100 feet of a structure (the Fire Warden may reduce the distance, but to no less than 30 feet). The County also enforces Zone 0 (0-5 feet, ember-resistant) under the Consolidated Fire Code Sec. 4907. Zones are structured as immediate (0-5 ft), lean-and-green, and reduced-fuel out to 100 feet.
Violations & Fines
Failure to clear draws an inspection notice and order to abate; unabated hazards can be corrected by the County with costs and administrative penalties charged to the owner, plus fire-code citations.
Frequently Asked Questions
How much brush must I clear around my house?
What if 100 feet extends past my property?
Sources & Official References
Other rules in Bostonia
California rules heatmap·Compare Bostonia to another location·View the California fire regulations overview
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Brush Clearance in Nearby Cities
How other cities in San Diego County handle brush clearance.