Fire · Glossary
Defensible Space
Updated 2026-07-18
Defensible Space is the managed area around a structure intended to reduce wildfire ignition and provide room for firefighters. California law generally requires specified fuel modification around covered buildings in State Responsibility Areas and Very High Fire Hazard Severity Zones, subject to current rules.
What it means
Defensible space uses vegetation removal, spacing, pruning, and maintenance in zones extending outward from a building.
Why it matters for land decisions
A parcel must have enough controllable area to maintain required clearance without relying on neighboring land.
- Consider slopes and property lines.
- Confirm current inspection standards.
People also ask
How far does California defensible space extend?
State law commonly addresses up to 100 feet from covered structures, or to the property line, with zone-specific rules. Verify current CAL FIRE and local requirements.
Does defensible space mean removing all vegetation?
No. It generally requires managed spacing, reduced fuels, and maintenance rather than complete clearing.
Official sources
Related terms
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