California Seller Disclosure Requirements: What You Must Disclose When Selling Your Home

California has some of the most comprehensive seller disclosure requirements of any state in the country. For sellers, that means a significant amount of paperwork — and a significant amount of personal responsibility for what goes into it.

The disclosure process can feel overwhelming, especially for first-time sellers or sellers who haven’t been through a California transaction in many years. But understanding what’s required, why it matters, and how to approach it correctly is one of the most important things you can do to protect yourself and ensure a smooth closing.

This article covers the core disclosure requirements for California residential home sellers, with a focus on what Orange County sellers encounter most often. It is general information only and is not legal advice. Consult a licensed California real estate attorney for guidance specific to your situation.

The Transfer Disclosure Statement (TDS)

The Transfer Disclosure Statement is the cornerstone of California’s seller disclosure framework. It is required for the sale of residential property with one to four units and must be completed by the seller — not the agent.

The TDS asks the seller to disclose known material facts about the property, including:

• The condition of major systems: roof, plumbing, electrical, HVAC, foundation • Known defects or malfunctions in appliances, fixtures, and structural components • Any additions, alterations, or repairs made to the property • Presence of environmental hazards: lead paint, asbestos, radon, mold • Any neighborhood conditions that materially affect the property’s value or desirability • Litigation, disputes, or legal proceedings involving the property • Any other known material facts that a buyer would want to know

The TDS is a seller-completed document. Your agent will review it with you and may add their own observations in a separate section, but the seller’s portion must reflect your personal knowledge. Completing it honestly and thoroughly is both a legal obligation and a practical protection.

Buyers have the right to cancel the purchase contract within a specified period after receiving the TDS. A complete, accurate TDS delivered early in the transaction reduces the risk of late-stage cancellations and post-closing disputes.

The Natural Hazard Disclosure (NHD)

California requires sellers to disclose whether a property is located in any of several state-designated natural hazard zones. This disclosure is typically prepared by a third-party NHD company and delivered to the buyer as part of the disclosure package.

The NHD covers six statutory hazard zones:

• Special Flood Hazard Area (FEMA) • Area of Potential Flooding (dam inundation) • High Fire Hazard Severity Zone • Wildland Fire Area • Earthquake Fault Zone (Alquist-Priolo) • Seismic Hazard Zone

In Orange County, fire hazard zone disclosures are particularly relevant. Many communities in the hills and canyons — including parts of Laguna Beach, Laguna Niguel, Aliso Viejo, and Mission Viejo — fall within designated fire hazard severity zones. Buyers in these areas have specific rights and may face insurance implications.

The NHD report also typically includes additional local and state disclosures beyond the six statutory zones, such as airport influence areas, military ordnance locations, and commercial/industrial zoning disclosures. Review the full report carefully with your agent.

Lead Paint and Other Federal Disclosures

For homes built before 1978, federal law requires sellers to disclose any known presence of lead-based paint or lead-based paint hazards. Sellers must also provide buyers with the EPA pamphlet “Protect Your Family From Lead in Your Home” and give buyers a 10-day opportunity to conduct a lead paint inspection.

This requirement applies regardless of whether the seller has ever tested for lead paint. If you don’t know whether lead paint is present, you disclose that you have no knowledge — you don’t skip the disclosure.

For homes built after 1978, the federal lead paint disclosure is not required, but California’s TDS still requires disclosure of any known environmental hazards, which can include lead if the seller has knowledge of it.

Death on the Property

California Civil Code Section 1710.2 requires sellers to disclose if a death occurred on the property within the past three years. This applies to deaths from any cause — natural, accidental, or otherwise — with one exception: deaths related to HIV/AIDS are specifically excluded from mandatory disclosure under California law.

If a buyer directly asks whether a death occurred on the property at any time — even beyond the three-year window — the seller must answer truthfully. The three-year rule governs what must be proactively disclosed; it does not permit a seller to lie in response to a direct question.

This is one of the disclosure areas sellers sometimes overlook, particularly if they purchased the home without being told about a prior death. If you don’t know, disclose that you don’t know. If you do know, disclose it.

Permit History and Unpermitted Work

One of the most common disclosure issues in Orange County involves unpermitted additions or improvements. A garage conversion, added bathroom, expanded square footage, or structural modification done without permits is a material fact that must be disclosed.

Unpermitted work creates real risk for buyers — potential code violations, insurance complications, and the cost of bringing work up to current standards or removing it. Buyers who discover unpermitted work after closing that wasn’t disclosed have grounds for legal action.

If you’re aware of unpermitted work on your property, disclose it. If you’re not sure whether work was permitted, you can check with your city or county building department. Your agent can help you navigate how to present this information accurately in the disclosure package.

Disclosing unpermitted work doesn’t necessarily kill a deal. Buyers factor it into their offer and their due diligence. What kills deals — and creates post-closing liability — is non-disclosure.

The Seller Property Questionnaire (SPQ)

In addition to the TDS, most California transactions include a Seller Property Questionnaire (SPQ), which is a more detailed supplement covering additional property conditions and history.

The SPQ asks about:

• Water intrusion, drainage, or flooding issues • Roof condition and history of leaks or repairs • Foundation or structural issues • Pest or termite history • Neighborhood nuisances: noise, odors, traffic • HOA disputes or pending litigation (for properties in HOA communities) • Any other conditions that might affect the property’s value or desirability

Like the TDS, the SPQ is a seller-completed document. It requires honest, thorough answers based on your actual knowledge of the property. “I don’t know” is an acceptable answer when it’s true. Leaving items blank or answering “no” when you have knowledge of an issue is not.

What Happens If You Fail to Disclose

California courts take seller disclosure obligations seriously. A seller who fails to disclose a known material defect can face:

• Rescission of the sale — the buyer can unwind the transaction and recover their purchase price • Damages — the buyer can sue for the cost of repairing the undisclosed defect, plus related losses • Fraud claims — if non-disclosure was intentional, the seller may face fraud liability, which can include punitive damages

The statute of limitations for disclosure-related claims in California is generally three years from the date the buyer discovered or should have discovered the defect.

The practical lesson: when in doubt, disclose. The cost of disclosing something that turns out to be minor is zero. The cost of not disclosing something that turns out to be material can be substantial.

Working Through Disclosures With Fixed Rate Real Estate

Disclosures are one of the areas where experienced representation makes the most difference. We walk every seller through the full disclosure package before the listing launches — not as a formality, but as a genuine review of what needs to be disclosed and how to present it accurately.

We also help sellers understand the difference between what must be disclosed and what is simply a negotiating point. Not every imperfection is a material defect. Not every repair history requires a disclosure. Understanding the distinction helps sellers complete their disclosures confidently and completely.

If you’re preparing to sell your Orange County home and want to understand the disclosure process before you start, the contact page is the right place to begin, or call directly at (949) 627-3300.

Fixed Rate Real Estate provides full-service listing representation in Orange County and Southern California at a 1% listing-side fee. Real estate commissions and compensation are not fixed by law and are negotiable. The 1% fee described here is FRRE’s listing-side compensation only. Buyer-side compensation, if any, is separate and negotiable. Other transaction costs may apply.