Legal
Do You Have to Disclose Damp When Selling a House?
Yes — you must disclose known damp when selling a house. The TA6 Property Information Form asks about the property’s condition, and giving a false answer or concealing a known damp problem can lead to a misrepresentation claim after completion. Damp does not stop a sale, but it must be disclosed honestly. You can then treat it, price for it, or sell as-is to a cash buyer who completes in 7-28 days.
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- Discloseon the TA6
- Or facea misrep claim
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The legal duty to disclose damp
When selling in England and Wales you complete the TA6 Property Information Form, which asks about the property’s condition, including issues like damp. You must answer honestly. While English law follows "caveat emptor" (buyer beware) for things the buyer can inspect, you must not give false answers or actively conceal a known problem. So if you know the property has damp, you are obliged to disclose it (see disclosure duties).
The risk of not disclosing
Concealing known damp is risky on two fronts. Practically, damp almost always shows up in the buyer’s survey, triggering a renegotiation or collapse — so hiding it rarely works. Legally, if you give a false answer on the TA6 and the buyer relies on it and suffers loss, they can bring a misrepresentation claim after completion, potentially for compensation. Honesty protects you from both outcomes.
What counts as damp to disclose
| Type | Disclose? |
|---|---|
| Known rising or penetrating damp | Yes |
| Persistent condensation / mould | Yes, if a known issue |
| Past damp, now treated | Yes — with treatment details/guarantee |
| A damp guarantee on file | Provide it to the buyer |
Disclosing past, treated damp with a guarantee actually reassures buyers (see selling with damp).
How to handle damp on a sale
Once disclosed, you can treat the cause (improve ventilation for condensation, fix leaks or rising damp) and sell normally, often with a transferable guarantee; price for it and let the buyer take it on; or sell as-is. Diagnosing the type of damp matters — condensation is often cheap to cure, while structural damp is a bigger job. Providing a specialist report and quote helps buyers price it accurately rather than assume the worst.
Selling fast
If damp deters mortgage buyers or you want speed, a cash buyer will purchase a damp-affected home as-is, factoring the remediation into the offer, and complete in 7-28 days. You disclose the damp, accept a price reflecting it, and gain certainty — with no risk of a mortgage buyer withdrawing after an off-putting survey.
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Written & reviewed by Lisa Hayes, Founder
Lisa Hayes is the founder of Ready Steady Sell and an independent UK home-selling expert with over a decade helping homeowners weigh cash house buyers, property investors and the wider fast house-sale industry — without pressure or hidden fees. Every guide is reviewed for accuracy under our editorial standards.
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Frequently asked questions
Straight answers, no sales talk
Do you have to disclose damp when selling a house?
Yes — you must disclose known damp on the TA6 Property Information Form. Concealing it can lead to a misrepresentation claim, and it usually shows up in the buyer’s survey anyway.
What happens if I do not disclose damp?
If you give a false answer and the buyer relies on it and suffers loss, they can bring a misrepresentation claim after completion. Damp also typically appears in the survey, causing renegotiation.
Does damp have to be declared if it has been treated?
Yes — disclose past damp and the treatment, ideally with a transferable guarantee. Documented, treated damp reassures buyers rather than alarming them.
Does damp stop a house sale?
No, but it can deter mortgage buyers or trigger a retention. You can treat it, price for it, or sell as-is to a cash buyer.
What damp do I need to disclose?
Any known rising, penetrating or persistent condensation damp, and any past damp now treated. Provide any specialist report or guarantee you hold.
How fast can I sell a damp-affected house?
A cash buyer can complete in 7-28 days, buying as-is and factoring the remediation into the offer.