How Do You Check a California Property's Wildfire Hazard?
By JC Pacific Corp Published 2026-09-01 Last professionally reviewed: September 2026
Start with official state and local Fire Hazard Severity Zone maps, then add property-specific investigation, local requirements, insurance review, and physical inspection.
Which sources should you use?
- California Office of the State Fire Marshal FHSZ viewer
- Local jurisdiction's adopted maps
- Local fire department or district
- Natural Hazard Disclosure report
- Seller disclosures
- Insurance professionals
- Defensible-space inspection records
- Building permits
- Specialized wildfire assessment
- Community wildfire plans
- Evacuation resources
The Office of the State Fire Marshal Fire Hazard Severity Zone viewer is a primary state source, but the controlling map for a property depends on its jurisdiction and local adoption.
Why should buyers use more than one source?
Maps may address different purposes, dates, boundaries, and hazard categories. A map also cannot fully describe a structure's vents, roof, vegetation, maintenance, or insurance eligibility.
Property DNA is one supporting research service that can provide preliminary property information as part of your due diligence. It is not a fire-risk report, an NHD report, an inspection, an appraisal, an insurance determination, or a substitute for official maps and local agencies.
Frequently Asked Questions
Is an insurance risk model the same as an FHSZ map?
No.
Can an online real estate portal replace official maps?
No.
Does Property DNA show every wildfire issue?
No. Use controlling public maps, disclosures, inspections, insurance review, and local agencies.
Educational information
Map boundaries and local adoption status can change.
Save dated copies or links to every official map and report reviewed during due diligence.
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The next step is a conversation with a local agent.
JC Pacific Corp is an Irvine-based Southern California brokerage helping buyers navigate offers, escrow, and financing. Tell us what you are looking for and we will point you to current options across the region.
A note on legal advice: These guides provide general, educational information about California real estate practice. They are not legal advice and do not create an attorney-client relationship. Mortgage information is general education, not individualized lending, tax or legal guidance. For advice about your specific offer, contract, closing or financing, consult a qualified California real estate attorney and a qualified mortgage professional.
A note on these wildfire-risk and fire-insurance guides: These articles provide general, educational information about California wildfire hazard, fire insurance, defensible space, and home hardening for buyers and sellers. They are not a fire-science report, an inspection, an appraisal, an insurance policy, a quote, a coverage determination, or a guarantee that any property can be insured, that a carrier will renew, or that any home or mitigation measure is safe or fireproof. A Fire Hazard Severity Zone describes broader physical conditions; it does not predict that a particular home will burn, and hazard is different from the individualized risk posed to a specific structure. No article quotes a premium, discount, policy limit, or regulatory deadline, and none describes a real estate professional as a firefighter, insurance agent, fire scientist, building inspector, or wildfire assessor. Property DNA is only one supporting research service and is never a fire-risk report, NHD report, inspection, appraisal, or insurance determination. Local fire authorities, counties, and cities may enforce rules stricter than state guidance. For a specific property, consult the official state or locally adopted map and current CAL FIRE, California Office of the State Fire Marshal, and California Department of Insurance resources, and direct underwriting and coverage questions to a California-licensed insurance professional.