California seller disclosure requirements come down to one idea: if you know something that would matter to a buyer, you have to say it. In practice that means three documents on nearly every San Diego home sale — the Transfer Disclosure Statement, the Natural Hazard Disclosure, and the Seller Property Questionnaire — plus an honest answer to anything they ask.
I’ve watched more deals wobble over a disclosure than over a price. Not because the seller was hiding something sinister — usually because they forgot about the slab leak in 2019, or figured a permit nobody pulled was ancient history. It isn’t. Let’s walk through it properly.
Key takeaways
- California Civil Code §1102 requires a completed, signed Transfer Disclosure Statement (TDS) on most 1–4 unit residential sales.
- Civil Code §1103 adds the Natural Hazard Disclosure — whether your property sits in any of six state-mapped hazard zones. In San Diego County, fire and flood zones come up constantly.
- Buyers generally have up to three years from discovery to bring a claim over a disclosure failure. “The sale closed” is not the end of your exposure.
- San Diego is still moving fast — the typical listing went under contract in about 29 days in July 2026, per Redfin. Build the disclosure packet before you list, not during escrow.
- When in doubt, disclose. Over-disclosing costs you a slightly longer conversation. Under-disclosing costs you the deal, or worse.
Who this is for
If you’re a San Diego homeowner eyeing a September or October listing — and a lot of you are, that’s the second-best window of the year around here — this is the homework you can do right now, before a single photo gets taken. You’ve probably lived in the house long enough that a decade of small repairs has blurred together. That blur is exactly where disclosure problems come from.
And there’s a timing reason to start early. Redfin’s July 2026 San Diego County data shows the typical home going under contract in roughly 29 days, with over a third of listings pending inside two weeks. When a market moves that quickly, a disclosure packet you’re still assembling on day nine of escrow becomes a renegotiation. Or a cancellation.
The three documents nearly every San Diego seller signs
| Document | What it covers | Why sellers trip on it |
|---|---|---|
| Transfer Disclosure Statement (TDS) Civil Code §1102 | Condition of the property, systems, appliances, known defects, hazards, lawsuits, deaths, neighborhood nuisances | People answer from memory instead of from records, and memory is generous |
| Natural Hazard Disclosure (NHD) Civil Code §1103 | Whether the home is in a mapped hazard zone — seismic fault, landslide, flood, dam inundation, wildfire, or very high fire hazard severity | Sellers assume it’s automatic. A third-party report is ordered, but you still sign it and you still own what you knew |
| Seller Property Questionnaire (SPQ) | A much longer set of follow-up questions — insurance claims, permits, pets, HOA issues, neighbor disputes, prior repairs | This is where “I didn’t think that counted” lives. It counts |
There are other forms depending on the property — lead-based paint for pre-1978 homes, HOA documents for a condo, Mello-Roos and other special-assessment notices, water-heater and smoke-detector compliance. Your agent should hand you a checklist, not a stack.
What “material” actually means
The legal standard isn’t “defects I think are a big deal.” It’s closer to: anything a reasonable buyer would want to know because it could affect the value or desirability of the home. That’s a wide net, and it’s supposed to be.
Practically, it covers physical condition, but also things that aren’t physical at all — a persistent drainage argument with the neighbor, an insurance claim you filed and then withdrew, the fact that the bonus room was converted without a permit, a planned development at the end of the street that you happen to know about. Nolo’s overview of California seller obligations is a solid plain-English primer if you want to read further.
The test isn’t whether it’s fixed. It’s whether it happened. Repaired problems still get disclosed — you just get to disclose them alongside the receipt.
The five things San Diego sellers forget most
- Unpermitted work. The garage conversion, the ADU that became an ADU gradually, the bathroom the previous owner added. Disclose it, and disclose that you don’t know its permit status if you don’t.
- Old leaks and past water intrusion. Fixed in 2019 still gets disclosed in 2026. Mold history especially.
- Insurance claims. Any claim on the property shows up in industry loss-history databases anyway. Better it comes from you.
- Neighbor and boundary friction. The fence line, the tree, the short-term rental next door, the barking. Uncomfortable, but material.
- Fire and flood zone realities. Plenty of San Diego neighborhoods sit in mapped very-high fire hazard severity zones, and buyers are asking sharper insurance questions than they did five years ago. Get ahead of it with your actual premium history.
What happens if you get it wrong
Best case, the buyer’s inspector finds it and you renegotiate from a weak position — because now you’re not just fixing a problem, you’re rebuilding trust mid-escrow. Middle case, they cancel and your listing goes back on the market with a stink on it and a longer days-on-market number.
Worst case is after closing. California generally gives a buyer up to three years from the point of discovery to bring a claim over a disclosure failure, and remedies can include damages or rescission. A seller who saved themselves an awkward paragraph can end up in a lawsuit two years into their next house.
I had a listing a while back where the seller mentioned — casually, on the driveway, after we’d already gone active — that the hillside had “slid a little” one wet winter. We stopped, documented it, disclosed it, priced it in, and sold it to a buyer who went in fully informed and never blinked. That deal closed clean precisely because we said it out loud early. The version where nobody mentions the hillside is the version that ends badly for everyone.
How to build your packet before you list
Give yourself two weeks and do it in this order:
- Pull every receipt, invoice, and warranty you can find — roof, HVAC, plumbing, electrical, termite, solar.
- Call your insurance agent and ask for your claim history in writing.
- Check permit records with the City or County for anything structural you didn’t do yourself.
- Consider a pre-listing inspection. It converts surprises into line items you control, and it pairs well with the work you’re already doing to prepare your house to sell.
- Then fill out the TDS and SPQ from documents, not memory — and let your agent read them with fresh eyes.
While you’re in planning mode, it’s worth running the numbers on the rest of it too — what it actually costs to sell a house in San Diego and how to price your home so you’re not discovering both at once.
Frequently asked questions
Do I have to disclose problems I already repaired?
Yes. A repaired defect is still a known past condition. The good news is that disclosing it with the invoice attached usually reassures buyers rather than scaring them — it reads as a well-maintained house.
Does an “as-is” sale get me out of disclosing?
No. “As-is” addresses who pays for repairs; it does not waive statutory disclosure duties. You still complete the TDS, the NHD, and the SPQ, and you still disclose known material facts. This is one of the most common and most expensive misunderstandings I run into.
What if I truly don’t know?
Say that. “Unknown” is a legitimate, protective answer when it’s honest — particularly on an inherited property or a home you never lived in. What you cannot do is guess in a direction that flatters the house.
Does selling off-market change any of this?
Not the disclosure obligations. An off-market or cash sale can simplify timelines and reduce showings, but the statutory disclosures follow the property, not the marketing method.
Thinking about a fall listing?
Let’s sit down before the photos. I’ll walk your house with you, tell you honestly what needs disclosing and what doesn’t, and give you a real number and a real timeline — including the version where you decide not to sell this year. No pressure either way.
Amara Berg
I help San Diego owners sell for more and manage rentals with less drama. I’d rather talk you out of a bad decision than into a listing — which is probably why most of my business comes from people I’ve already worked with.
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This article is general real estate information for California homeowners and is not legal advice. Disclosure obligations depend on your specific property and transaction, and statutes and forms change — please consult a qualified California real estate attorney about your situation. Market figures are cited as of the dates noted. Amara Berg, CA DRE #01961620 · Big Returns, CA DRE #02322119. Equal Housing Opportunity.