Defensible Space Checklist for Ventura County Homeowners
What every home in wildfire country needs — zone by zone.
Defensible space is the buffer you create between your home and the grass, trees, shrubs, or any other vegetation that could fuel a wildfire. California law requires it. But more importantly, it's what gives firefighters a fighting chance to save your home — and themselves.
After 20+ years as a wildland firefighter and 13 as a fire captain in Ventura County, I've walked hundreds of properties. The homes that survive wildfires almost always have one thing in common: intentional, maintained defensible space. The ones that don't — even beautiful, well-built homes — often don't make it.
The Three Defensible Space Zones
Zone 0 — The Home Ignition Zone (0–5 feet)
The most critical zone. Embers land here and ignite your home directly.
- Remove all dead vegetation, dry leaves, and pine needles from roof and gutters
- Clear all combustible materials from under decks and porches (furniture, firewood, doormats)
- Replace wood mulch with gravel, rock, or non-combustible ground cover within 5 feet of the foundation
- Move propane tanks and firewood at least 30 feet from the structure
- Screen all vents with 1/16" to 1/8" metal mesh to block ember intrusion
- Seal gaps in eaves, soffits, and roof-wall junctions
Zone 1 — Lean, Clean & Green (0–30 feet)
Create a buffer that slows fire and reduces radiant heat reaching your home.
- Remove all dead plants, grass, and weeds
- Mow grass to a maximum height of 4 inches
- Space trees so canopies are at least 10 feet apart
- Prune tree branches to a height of 6–10 feet from the ground
- Remove all ladder fuels — shrubs and plants that allow fire to climb from ground to tree canopy
- Keep plants well-irrigated and green during fire season
- Remove or replace highly flammable plants (juniper, rosemary, ornamental grasses)
Zone 2 — Reduced Fuel Zone (30–100 feet)
Reduce fuel density so fire slows and loses intensity before reaching Zone 1.
- Cut or mow grass and weeds to 4 inches or less
- Space trees so canopies are at least 18 feet apart
- Remove dead branches and limbs from trees
- Dispose of all cut vegetation — don't leave it as additional fuel
- Create separation between shrub clusters — no continuous fuel beds
California Law Requires Defensible Space
Under California Public Resources Code 4291, homeowners in State Responsibility Areas (SRA) are required to maintain 100 feet of defensible space. Ventura County fire agencies enforce this requirement and can issue citations for non-compliance. More importantly, your insurer may deny a claim if your home lacked required defensible space at the time of a fire.
Not Sure Where to Start? Get a Professional Walkthrough.
A checklist tells you what to do. A walkthrough from a wildland fire captain tells you exactly what matters most on your specific property — and documents it for your insurer.
Book a Walkthrough — $350