Wildfire Mitigation in Simi Valley, California
Simi Valley sits in Ventura County, where Ventura County Fire Department holds fire jurisdiction. Here is what the hazard mapping actually shows on the ground, and what it puts in force.
What the hazard mapping shows in Simi Valley
Of twenty-five points sampled across Simi Valley, fourteen fell inside a mapped Fire Hazard Severity Zone: eleven in Very High (LRA) and three in Very High (SRA). The remaining eleven sat outside any mapped zone, which does not mean no risk. It means CAL FIRE has not zoned that ground.
| Zone measured | Sample points |
|---|---|
| Very High (LRA) | 11 of 14 |
| Very High (SRA) | 3 of 14 |
100% of the mapped points in Simi Valley came back Very High, which ranks it 18 of 32 across the areas we sample. Measured against CAL FIRE's Fire Hazard Severity Zone service on 2026-09-26.
What that means for a Simi Valley property
Most of Simi Valley measured as Very High in a LRA. That is the Local Responsibility Area, where your city or county fire department carries wildfire protection and Government Code 51182 defensible space applies in Very High zones.
Government Code 51182 reaches Local Responsibility Area parcels only where the zone is Very High, which is what the grid measured across Simi Valley.
Simi Valley is not uniform. The grid returned more than one classification inside the city, so two neighbours on different streets can genuinely be under different rules. That is the single most common reason an owner here is told something that turns out not to apply to them.
Your parcel, not your city
A city-level answer cannot tell you what you owe. Hazard zone, responsibility area and fire authority are assigned parcel by parcel, and in Simi Valley the grid already disagrees with itself across fourteen sample points. Our Requirements Finder takes an address, reads the actual zone for that parcel from CAL FIRE and the county, and returns the obligations that attach to it, each one cited.
Check a Simi Valley address18 further requirements match a parcel of this type and are held back from publication until each has been checked against its published source. We would rather show you nothing than assert a legal requirement we have not verified.