Do I need a structural engineer report to sell my house?
Reports & inspections

Do I need a structural engineer report to sell my house?

When a sale triggers one, and when it doesn't.

The short answer

You do not normally need a structural engineer's report just to put your house on the market — there is no legal requirement to commission one before selling. A report becomes relevant when there is a known or visible structural issue, when a buyer's survey flags cracking or movement, or when the buyer's mortgage lender makes lending conditional on a structural assessment. In those cases the buyer often commissions the report, though a seller may provide one proactively to keep the sale moving. If your home has had structural work — a wall removed, an extension, a chimney removed — the documents buyers really want are the original engineer's calculations and the Building Control completion certificate, not a fresh report. Whether you need one depends entirely on the property's history and condition.

There is no blanket rule that you must have a structural report to sell. It comes down to whether anything structural is in question and what the buyer's side asks for. The points below set out when it arises. This is general guidance, not legal advice.

When a report comes up

There is no legal requirement

Selling a home in England and Wales does not legally require a structural engineer's report. What the law does require is honesty: when you complete the TA6 Property Information Form, you must disclose what you know — including any structural problems, subsidence history, or building work and whether it had Building Control approval. A report is not mandatory, but you cannot conceal a known structural defect. The practical trigger for a report is almost always the buyer's side raising a concern, not a legal obligation on the seller. It is worth being clear on that distinction before spending money: there is no document you are obliged to produce simply to list, so a pre-sale report is a commercial decision about smoothing the sale, never a legal hurdle you must clear first.

When a report does get triggered

Even without a legal duty, a sale can stall until a structural report exists. The common triggers are below.

TriggerWho usually commissionsWhy
Buyer's survey flags crackingbuyersurvey recommends investigation
Mortgage lender conditionbuyerlender needs reassurance
Visible movement / past claimseller or buyerto explain history
Insurer / subsidence historybuyerto confirm it's resolved

Indicative triggers for guidance. Who pays varies by situation and negotiation.

If you've had structural work done

For a home that has had structural alterations — a load-bearing wall removed, an extension, a loft conversion, a chimney breast taken out — buyers and their solicitors are far more interested in the original paperwork than in a new report. The two documents that matter are the structural engineer's calculations for the work and the Building Control completion certificate proving it was inspected and signed off. If you have these, dig them out before listing; they reassure the buyer's surveyor and keep the conveyancing smooth. If they are missing, you may need to obtain a regularisation certificate from Building Control or, in some cases, indemnity insurance — and an engineer's report can help demonstrate the work is sound.

Find your certificates before you list: missing Building Control sign-off for past structural work is one of the most common causes of a sale stalling. Sorting it out early — a report, regularisation, or indemnity insurance — avoids a last-minute renegotiation.

When a proactive report helps the seller

Sometimes commissioning a report before you sell works in your favour. If your home has visible cracking that you know is historic and stable, a structural engineer's report confirming it is not active can stop a nervous buyer (or their surveyor) assuming the worst and reducing their offer. Likewise, if there was a past subsidence claim now resolved, a report showing the property is stable, alongside the insurer's documentation, reassures buyers and lenders. In those specific situations a few hundred pounds spent on a clear report can protect thousands in the sale price. For a home with no structural history or concerns, though, a pre-sale report is usually an unnecessary cost.

What buyers and their solicitors actually look for

Knowing what the other side checks helps you prepare the right documents rather than over-spending on a report you may not need. The buyer's solicitor raises pre-contract enquiries and will ask, for any alterations, whether planning permission (where needed) and Building Regulations approval were obtained, and will want to see the completion certificate. The buyer's surveyor, meanwhile, inspects condition and may recommend a structural engineer's report if they see movement. So the documents that smooth a sale are, in order of importance: the Building Control completion certificate for any structural work, the original engineer's calculations, and — only if there is a live concern — a recent structural report. If you have made structural changes and can produce the first two, you often do not need the third at all. The practical takeaway is to gather your paperwork before listing: it is the absence of certificates, far more than the absence of a fresh report, that derails sales.

Frequently asked questions

Is a structural engineer report legally required to sell a house?

No. There is no legal requirement to obtain a structural engineer's report before selling. You must, however, disclose any known structural problems honestly on the TA6 Property Information Form.

Who pays for a structural report in a house sale?

It varies. When a buyer's survey or lender triggers the report, the buyer usually commissions and pays for it. A seller may choose to provide one proactively — for example to reassure buyers about historic cracking — and that is then the seller's cost.

What if I removed a wall without Building Control sign-off?

Buyers' solicitors often ask for completion certificates for structural work. If you lack one, options include applying for a regularisation certificate from Building Control, obtaining indemnity insurance, or commissioning an engineer's report to show the work is sound. Sort this before listing.

Sources & further reading

Figures on this page are typical UK ranges drawn from published sources and depend on your specific project. They are guidance, not a quotation.