CAL FIRE FHSZ · INSURANCE RISK · PORTOLA VALLEY

Is your home in a Portola Valley fire hazard zone?

Enter your Portola Valley address. We scan official CAL FIRE satellite and hazard-zone data and show your exact zone, what it means for your insurance, and the grants you may qualify for — in seconds.

⚡ See your fire zone, insurance risk & grant eligibility — free, in seconds.

Source: CAL FIRE Fire Hazard Severity Zones (SRA current; LRA shown as last recommended). Informational — confirm with your local authority.

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Fire hazard zones & AB 3074 in Portola Valley

Portola Valley, San Mateo County is among the California communities affected by CAL FIRE Fire Hazard Severity Zone mapping. If your property falls in a Very High or High zone, hardening it matters now: homes in fire areas increasingly face insurance non-renewal, premium surcharges and denied claims, and the state is phasing in new ember-resistant “Zone 0” home-hardening standards.

Use the checker above to see your property's exact zone, what it means for your insurance, the grant funding you may qualify for, and the specific hardening measures that matter most for your home.

Likely hardening measures

  • Ember-resistant vents — $500–$3,000
  • Class A fire-rated roof — $12,000–$40,000
  • Zone 0 / defensible space — $800–$8,000
  • Dual-pane tempered windows — $4,000–$20,000
  • Ember-resistant siding & eaves — $6,000–$30,000
  • Noncombustible gutters & guards — $300–$2,500

Common questions — Portola Valley

Is Portola Valley in a Fire Hazard Severity Zone?
Parts of Portola Valley, San Mateo County fall within CAL FIRE Fire Hazard Severity Zones. Whether your specific property is in a Moderate, High, or Very High zone depends on its exact location — enter your address above for an instant, parcel-level check against the official CAL FIRE maps.
Does my Portola Valley fire zone affect my home insurance?
Yes. Insurers are non-renewing and surcharging homes in High and Very High Fire Hazard Severity Zones, and many Portola Valley owners are pushed onto the costly California FAIR Plan. Home-hardening and defensible space make a property more fire-resilient and easier to keep insured.
Are there new home-hardening rules for Portola Valley (AB 3074 / Zone 0)?
California is phasing in an ember-resistant “Zone 0” standard for the first 5 feet around homes in fire hazard zones (AB 3074 / SB 504). The Board of Forestry is finalizing the timeline, with existing homes phased in over several years — hardening now gets you ahead of the rules.
Are wildfire-hardening grants available in Portola Valley?
California's Safe Homes and Wildfire Mitigation programs offer eligible homeowners in High and Very High zones up to $40,000 toward ember-resistant vents, Class A roofs, defensible space and more. Eligibility is income-qualified and funding is limited — we can check whether you qualify with your free assessment.
How do I find a wildfire home-hardening contractor in Portola Valley?
Start by checking your zone and deadline above. When you request a free assessment, a local CSLB-licensed pro reviews your property and walks you through the highest-impact upgrades, costs, and any grants you qualify for.

Nearby San Mateo County areas we serve

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