How to Complete the California FHDS: Fire Hardening and Defensible Space Disclosure

If you’re selling a one-to-four-unit home in a California high or very high fire hazard severity zone, you must give the buyer a completed Fire Hardening and Defensible Space Disclosure, known as the FHDS. The form asks you to identify structural features that make the home vulnerable to wildfire and to document that the property meets California’s defensible space rules. The obligation comes from Civil Code Sections 1102.6f and 1102.19, and it applies to any covered sale closing on or after January 1, 2021.¹

When the FHDS Is Required

Two conditions have to be met: the property is residential with one to four dwelling units, and it sits inside a designated high or very high fire hazard severity zone mapped by CAL FIRE. You can check your address on the Office of the State Fire Marshal’s Fire Hazard Severity Zone viewer.² The natural hazard disclosure report your escrow orders will also flag the zone. If the property is not in a designated zone, the FHDS does not apply.

The form has two parts, and their triggers are slightly different:

The fire hardening disclosure is required for homes built before current Wildland-Urban Interface building codes took effect, and it carries a statutory notice warning the buyer the home may predate modern fire-hardening standards.¹
The defensible space documentation is required for every covered sale in a fire zone regardless of the home’s age, starting July 1, 2021.³

Sales That Are Exempt

The FHDS sits inside Article 1.5 of the Civil Code, so the article-wide exemptions apply. You do not need to deliver the form for court-ordered sales (probate, foreclosure, bankruptcy trustee transfers, eminent domain, decrees for specific performance), transfers to or from a lender in connection with a default, transfers by a trustee, guardian, or conservator, sales between co-owners, transfers to a spouse or direct relative, transfers under a divorce or legal separation judgment, or sales involving a government entity.⁴ One narrow catch: the trustee exemption doesn’t apply if the trustee is a natural person who owned or lived in the property within the past year.

Filling Out the Fire Hardening Section

This section is based on your actual knowledge. You are not required to hire an inspector, and you are not certifying the home is fire-safe. You are answering honestly about what you know. The form walks through categories of building components:

Roof covering, and whether it is non-combustible or fire-rated (Class A asphalt shingles, tile, metal) or combustible (untreated wood shingles).
Exterior siding, including any gaps or combustible cladding.
Attic and crawl-space vents, and whether they are screened with ember-resistant mesh; also whether eaves are enclosed or have exposed rafters.
Windows, and whether they are multi-pane or tempered rather than single-pane.
Decks, patios, and balconies, particularly any combustible attached structures against the house.
Any other known vulnerabilities, such as combustible fencing attached to the structure.

If you don’t know whether a material is fire-rated, mark the item unknown. Guessing creates liability. Marking honestly does not.

Since July 1, 2025, the fire hardening section must also include the state’s list of low-cost retrofits developed under Government Code Section 51189, and you must identify which of those retrofits, if any, were completed during your ownership.¹

Filling Out the Defensible Space Section

California requires property owners in fire hazard severity zones to maintain 100 feet of defensible space around structures, measured from each side of the building but not past the property line.⁵ The defensible space part of the FHDS is where you show your property meets that standard. Which document you attach depends on your local jurisdiction.³

If your city or county has an ordinance requiring defensible space compliance documentation, give the buyer a copy of that documentation and the contact information for the agency that issued it. Inspection fees typically run from around $50 to $150.
If there is no such local ordinance but a state, local, or qualified nonprofit agency offers defensible space inspections in your area, you must obtain that inspection within six months before entering the sales transaction.
If neither option is available, you and the buyer can sign a written agreement that the buyer will bring the property into compliance within one year after closing.

Public Resources Code 4291 breaks compliance down into zones. From 0 to 5 feet around the structure, remove anything embers could ignite, including mulch, dead vegetation, and combustible debris. From 5 to 30 feet, reduce and space vegetation to make ignition of the building unlikely. From 30 to 100 feet, keep fuels managed so fire intensity drops as it approaches the house. Trim trees at least 10 feet from chimney outlets, remove dead wood from plants near the structure, and clear the roof of leaves and needles.⁵ Passing an inspection before you list gives you a clean compliance report to attach to the FHDS and keeps escrow moving.

Delivering the Form to the Buyer

The statute requires delivery “as soon as practicable before transfer of title.”⁶ The standard C.A.R. Residential Purchase Agreement gives sellers seven days after acceptance to deliver property condition disclosures, so most agents work to that window. You can deliver in person, by mail, or electronically if both sides have agreed to transact electronically. Bundle the FHDS with your Transfer Disclosure Statement and Natural Hazard Disclosure so nothing falls through the cracks.

The Buyer’s Right to Cancel After Late Delivery

If the buyer has already signed the purchase offer when the FHDS arrives, a statutory cancellation window opens. Three days from in-person delivery. Five days from delivery by mail. Five days from electronic delivery.⁶

Two details matter. First, the buyer must give written notice within the window to cancel. Second, the clock only starts once all required sections are complete. An incomplete FHDS leaves the cancellation right open indefinitely. That is the practical reason to have the form ready at or immediately after acceptance: late or incomplete delivery hands the buyer an exit they otherwise wouldn’t have.

Liability for Skipping or Misstating the Disclosure

Failing to deliver the FHDS or misrepresenting what you know does not void the sale, but a seller who willfully or negligently violates Article 1.5 is liable to the buyer for actual damages.⁷ Damages can include the cost of fire-hardening retrofits the buyer would have negotiated for at the price, or, in a bad case, losses from fire damage the buyer might have prevented with accurate information.

The word negligently does work here. A seller who genuinely didn’t know about a vulnerability is in a different position than one who knew the attic vents lacked ember screens and left the line blank. Answer every section. Mark items unknown where you’re unsure. That’s the practical defense against a post-sale claim.

Why Honest Disclosure Can Also Help the Sale

Fire-hardening improvements you disclose on the FHDS can translate into insurance savings for the buyer. The California FAIR Plan, the insurer of last resort for high-risk properties, offers up to 12 wildfire hardening discounts; a dwelling policyholder who qualifies for all of them can receive up to 16.4% off the wildfire portion of the premium.⁸ The discount categories track the FHDS categories: Class A roofs, enclosed eaves, ember-resistant vents, multi-pane windows, non-combustible materials within five feet of the structure, and vegetation cleared under Public Resources Code 4291.

The Insurance and Wildfire Safety Act (AB 1), effective January 1, 2026, also requires the California Department of Insurance to regularly review its Safer from Wildfires regulations and update discount structures as mitigation science develops.⁹ A well-documented FHDS gives your buyer a running start on qualifying for those discounts, and gives you a stronger listing in a market where fire insurance is often the deciding factor.

1
California Legislative Information. California Code, Civil Code CIV 1102.6f
2
OSFM. Fire Hazard Severity Zones
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California Legislative Information. California Code Civil Code 1102.19
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California Legislative Information. California Code Civil Code 1102.2
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California Legislative Information. California Public Resources Code 4291
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California Legislative Information. California Code Civil Code 1102.3
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California Legislative Information. California Code, Civil Code CIV 1102.13
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California FAIR Plan. Discounts for Dwelling Fire and Commercial Policies
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California Department of Insurance. New Laws Sponsored by Commissioner Lara to Strengthen Consumer Protections and Wildfire Resilience Take Effect January 1