Legal
Can You Sell a House Without Building Regulations?
Yes — you can sell a house where past works lack building-regulations approval, but it can complicate a mortgage sale because the buyer’s solicitor will check for it. Your options: apply for a regularisation certificate, use indemnity insurance for older work where enforcement time limits have passed, disclose and price for it, or sell as-is to a cash buyer who completes in 7-28 days. You must disclose missing building regs honestly.
What is your property worth?
Get genuine offers from checked & vetted buyers.
- Solicitorscheck the sign-off
- Regulariseor indemnity
- 7-28 dayscash, disclosed
Why building regs matter on a sale
Building regulations govern how work is built (structure, safety, insulation, electrics, drainage), separate from planning permission (which governs whether it is allowed). When you sell, the buyer’s solicitor checks that alterations — extensions, conversions, new windows, a new boiler, electrical work — had the required building-regulations approval and a completion certificate. Missing certificates raise a query, because the buyer (and their lender) wants assurance the work is safe and compliant.
How to resolve missing building regs
| Option | When suitable |
|---|---|
| Regularisation certificate | Apply to the council to assess and certify the work |
| Indemnity insurance | Older work; enforcement time limits largely passed |
| Disclose & price for it | Sell as-is on the open market |
| Sell to a cash buyer | Want speed; avoid the process |
Regularisation gives the cleanest title; indemnity insurance is the common quick fix for older work.
Regularisation vs indemnity insurance
Regularisation means applying to the local authority to inspect and certify work done without approval — it may require opening up parts of the work, but it produces a proper certificate and the widest buyer market. Indemnity insurance is a one-off policy protecting the buyer and lender against the (usually small) risk of enforcement on older work, allowing a mortgage sale to proceed without regularising. As with covenants, do not contact the council about the specific work once you intend to insure, as it can void the policy.
Disclosure
You must disclose missing building-regulations approval on the property information form — the buyer’s solicitor will check building-control records anyway, so concealment is futile and risks a claim. Provide whatever you have: any approvals, the date of the work, and any indemnity policy. Honest disclosure with a clear plan (regularisation or insurance) reassures buyers far more than an unexplained gap (see unauthorised extensions).
Selling fast
If resolving the building-regs position is slow, the work is deterring mortgage buyers, or you need speed, a cash buyer will purchase with the issue disclosed, accept or insure the risk, and complete in 7-28 days without a lender to satisfy. You disclose what you know, accept a price reflecting the issue, and gain certainty. See unresolved building regs.
Don’t accept a lowball offer for your home
Compare genuine cash offers and investor options in minutes — free, no obligation, no fees.
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.
LinkedIn · Expert commentary · In the media · Industry statistics
Frequently asked questions
Straight answers, no sales talk
Can I sell a house without building regulations?
Yes, but missing building-reg approval for past works can complicate a mortgage sale. You can regularise it, use indemnity insurance, disclose and price for it, or sell as-is to a cash buyer.
What is a regularisation certificate?
A certificate from the local authority confirming that work done without approval has been inspected and meets building regulations. It may require opening up parts of the work.
Can indemnity insurance cover missing building regs?
Often, for older work where enforcement time limits have largely passed. It protects the buyer and lender against the residual risk. Do not contact the council about the work once you plan to insure.
Do I have to disclose missing building regulations?
Yes — disclose it on the property information form. The buyer’s solicitor will check building-control records, so concealment is futile and risks a claim.
Does missing building regs stop a mortgage?
It can give a cautious lender pause until resolved by regularisation or indemnity insurance. Cash buyers are unaffected.
How fast can I sell with missing building regs?
A cash buyer can complete in 7-28 days, buying with the issue disclosed and accepting or insuring the risk.