Selling a House with Subsidence: Your Options in 2026

The three real routes through it

Waiting works if there is no pressure to move: a longer track record of monitored stability gradually makes mortgage lenders more comfortable, though there is no fixed timeline and some remain cautious regardless of history. Specialist subsidence insurance, arranged to transfer to a new owner, strengthens a mortgaged buyer’s case with some lenders, though it does not guarantee approval and plenty remain unmoved by it. A cash sale removes the mortgage survey from the process entirely, which is the only one of the three that gives you a firm answer on a timeline you control rather than a lender’s.

What we look at instead of a mortgage survey

We ask for whatever engineer’s reports, monitoring history or insurance documentation already exists, and we assess the property on that basis rather than declining automatically because subsidence appears on the file. Our offer is made in writing and does not change unless a significant undisclosed defect is identified by survey, the same commitment we make on every property, subsidence history or not.

Frequently Asked Questions

Do I have to declare subsidence when selling my house?

Yes. The TA6 Property Information Form, completed as part of every UK conveyancing process, requires you to disclose any history or signs of subsidence, landslip or heave, along with any structural issues and any insurance claims made on the property. Leaving this out is a breach of contract a buyer can later sue over, even after completion.

Can I sell a house with subsidence in the UK?

Yes, but it narrows your buyer pool. A history of subsidence, even fully resolved, commonly leads a mainstream lender’s surveyor to decline or heavily restrict a mortgage, which rules out buyers who need one. A cash sale does not require a mortgage survey, so it remains available regardless.

How common is subsidence in the UK?

The Association of British Insurers recorded roughly 9,000 households supported by new subsidence claims in the first half of 2025 alone, with the average claim reaching a record £20,000 by the second quarter of 2026. It is far from rare, and a single historic claim on file is often enough to affect a mortgage decision even when the property is stable.

Will a subsidence history stop a mortgage buyer completing?

It can, at any point up to exchange. A mortgage-backed sale depends on a lender’s surveyor approving the property, and a subsidence history is one of the most common reasons a survey triggers a decline or a reduced offer weeks into a sale that looked agreed.

Does specialist subsidence insurance help when selling?

It can strengthen a mortgage buyer’s case, since a current specialist policy that will transfer to a new owner reassures some lenders where a standard policy will not. It does not guarantee lender approval, and many mainstream lenders remain cautious regardless of insurance in place.