Insuring a High-Value Home in California Wildfire Country

Insuring a high-value home in California wildfire country usually comes down to one of three routes: an admitted high-value carrier, a non-admitted (surplus lines) carrier, or the California FAIR Plan paired with a difference-in-conditions (DIC) policy. The FAIR Plan is a limited, named-peril fire policy with higher limits of up to $3 million for residential policyholders, so a larger or more complex home often needs a second policy or a different carrier entirely.

For buyers of estates in Napa, Sonoma and Marin, insurance has become a contract issue as much as a cost. A quote that arrives late, or a lender that rejects the coverage, can stall a closing. This post explains the options, what lenders look for, how to fit quotes and binding into your contingency periods, and the mitigation steps that can improve terms. It doesn’t quote premiums, because those depend on the address, the house and the carrier.

Why high-value homes in fire zones are harder to insure

Insurers judge wildfire exposure address by address with their own models. CAL FIRE’s hazard maps are a separate system, and the State Fire Marshal’s map page points to a Department of Insurance alert stating that the maps do not affect insurance rates or availability. They still drive disclosures and defensible space rules: the State Fire Marshal’s maps for the State Responsibility Area took effect April 1, 2024, and new Local Responsibility Area maps were released in early 2025; our guide to North Bay fire hazard severity zones explains how to look up an address.

The state is trying to pull carriers back. The Department of Insurance’s Sustainable Insurance Strategy, announced in September 2023, includes forward-looking catastrophe models in rate-setting and a requirement that insurers write at least 85% of their statewide market share in wildfire-distressed underserved areas. Homes that meet the state’s Safer from Wildfires standards get priority when policyholders move from the FAIR Plan back to the standard market. How fast that changes availability for a particular estate is something only current quotes can tell you.

What the FAIR Plan covers, and where it stops

The California FAIR Plan is the state’s insurer of last resort for property owners who can’t find coverage elsewhere. Its dwelling policy is a named-peril policy covering fire and lightning, internal explosion and smoke. Vandalism and malicious mischief can be added for an extra cost.

• Limits: the Department of Insurance lists higher limits of $3 million for residential policyholders and $20 million per location for commercial policies.
• What’s missing: water damage, theft and liability aren’t part of the FAIR Plan dwelling policy; the FAIR Plan says those come from a separate DIC policy, which it does not sell.
• What’s coming: the Department says a comprehensive residential FAIR Plan option is in progress that would cover water damage, liability, theft and additional living expenses, so buyers wouldn’t need a separate DIC.

For a home whose rebuild cost is above the FAIR Plan limit, ask your broker exactly how the gap would be covered and get the answer in writing. Our buyer’s guide to buying a home that needs the FAIR Plan covers the application steps.

Admitted, non-admitted and FAIR Plan coverage compared

Insurance Code 1763 lets a surplus line broker place coverage with a non-admitted insurer only after a diligent search of admitted insurers, which is presumed when three admitted insurers that write that coverage have declined it, or when fewer than three write it in California. Insurance Code 1764.1 requires a notice telling you the insurer is “not licensed by the State of California” and doesn’t participate in the state’s insurance guarantee funds. Neither makes surplus lines coverage bad, but you should know which kind you’re buying.

What lenders require

For loans sold to Fannie Mae, the property policy must cover replacement cost (roofs excepted), include required perils such as fire and lightning, explosion, windstorm, hail and smoke, and carry a deductible of no more than 5% of the coverage amount. If a policy excludes a required peril, the borrower must add an acceptable policy, such as a stand-alone one, for that peril.

Many high-value purchases use jumbo loans that aren’t sold to Fannie Mae, so the lender’s own guidelines decide. Ask the lender, in writing and before you write the offer, whether it accepts a FAIR Plan policy with a DIC, a surplus lines carrier, and the deductible you’re being quoted. Then make sure your loan contingency gives you time for the answer.

Timing insurance inside the purchase contract

1. Before the offer: give your broker the address, square footage, year built, roof type and age, and any hardening work, and ask for indications from admitted, surplus lines and FAIR Plan options.
2. Ask the seller for history: request the property’s loss history, the AB 38 defensible space report if one exists (see our AB 38 inspection guide) and receipts for mitigation work. LexisNexis Risk Solutions, which compiles insurance claims data, lets consumers request their own report, and the FACT Act entitles you to one free copy, so a seller can pull theirs.
3. During the investigation period: get firm quotes, including the DIC if you’ll need one. Confirm with the lender that the structure is acceptable.
4. Before removing contingencies: have a bindable quote in hand. Removing contingencies first leaves you committed without confirmed coverage.
5. Before closing: bind the policy and send evidence of insurance to escrow and the lender.

Our guides to homeowners insurance during escrow and the California escrow timeline show how these steps line up with the contract dates.

Mitigation that can improve your terms

The FAIR Plan offers wildfire discounts on the wildfire portion of the premium for dwelling policies effective on or after November 15, 2025, and up to 12 discounts in all. A policyholder who earns all 12 may see up to 16.4% off the wildfire portion.

• Structure (up to five): a Class A roof, enclosed eaves, ember- and fire-resistant vents, upgraded multi-pane windows or shutters, and six inches of noncombustible material at the base of exterior walls.
• Immediate surroundings (up to five): no vegetation under decks, only noncombustible materials within five feet of the home (fences and gates included), sheds more than 30 feet away where possible, and trimmed trees with defensible space that complies with rules such as Public Resources Code 4291.
• Completion and community: one more discount for meeting all ten property criteria, and one for a home in a Firewise USA site in good standing or a Board of Forestry Fire Risk Reduction Community.

Private carriers set their own credits, so ask what documentation each one accepts. Our home hardening guide covers the work itself.

Estates, vineyards and second homes

A wine country estate often carries more than a house: guest cottages, barns, a pool house, a vineyard or a small winery. Ask whether every structure is scheduled on the policy, whether business activity on the property needs commercial coverage, and how the deductible applies per building. Our guide to vineyard and winery insurance covers the agricultural side.

Second homes raise their own questions about occupancy and short-term rentals, which carriers treat differently; read our post on buying a second home in Sonoma County. For the purchase itself, see our luxury real estate services and market guides for Napa luxury homes and Marin luxury homes.

Diamond may refer you to partners we work with; you’re free to choose any provider. This is general information, not insurance or legal advice; talk to a licensed California insurance broker about your situation.

Questions people ask

What is the maximum coverage on a California FAIR Plan policy?

The Department of Insurance lists higher limits of $3 million for residential policyholders and $20 million per location for commercial policies. Ask your broker how coverage above that would be handled.

What does a difference in conditions policy cover?

A DIC policy fills gaps in the FAIR Plan’s fire-only coverage, typically water damage, theft and liability. The FAIR Plan doesn’t sell DIC policies; a broker places them with a separate insurer.

Are there alternatives to the California FAIR Plan?

Yes: admitted carriers that still write the address, including high-value specialists, and non-admitted surplus lines carriers placed by a surplus line broker after a diligent search. The FAIR Plan is meant as the last resort.

Is surplus lines insurance riskier?

The insurer isn’t licensed by California and isn’t backed by the state’s guarantee funds if it fails. Financial strength and policy terms matter more than the label, so review both with your broker.

When should a buyer get insurance quotes?

Before making an offer on a fire-zone property, with firm quotes during the investigation period and a bindable policy before removing contingencies.

Will my lender accept a FAIR Plan policy?

It depends on the lender. Fannie Mae requires replacement-cost coverage, specific perils and a deductible of no more than 5%; jumbo lenders set their own rules, so ask in writing early.

If you’re buying a high-value home in a fire zone, we can build insurance checkpoints into your offer and timeline from the start. Begin with our guide to buying a luxury home or contact Diamond Real Estate Group to talk through a specific property.

Sources & notes

• California Department of Insurance: California FAIR Plan
• California Department of Insurance: Sustainable Insurance Strategy updates
• California FAIR Plan: Dwelling policy
• California FAIR Plan: Difference in Conditions (DIC)
• California FAIR Plan: Wildfire hardening discounts for dwelling fire and commercial policies (Nov. 15, 2025)
• Justia (California Code, 2025): Insurance Code section 1763
• Justia (California Code, 2025): Insurance Code section 1764.1
• Fannie Mae Selling Guide B7-3-02: Property insurance requirements for one- to four-unit properties (08/05/2026)
• LexisNexis Risk Solutions: Consumer disclosure reports
• CAL FIRE Office of the State Fire Marshal: Fire Hazard Severity Zones

Last reviewed October 2026 by Matthew Martinez.