Retrospective Building Regulations Applications
Work already been done without Building Control sign-off? It happens more often than you'd think — a previous owner removed a wall, converted a loft, or built an extension without the right paperwork. We help you sort it out with retrospective structural calculations so you can apply for a regularisation certificate.
How we help
- Site visit to inspect the work that was done
- Structural assessment — is the existing work adequate, or does it need remedial action?
- Retrospective calculations and drawings to demonstrate compliance (or specify what needs fixing)
- Supporting documentation for your regularisation application to Building Control
- Liaison with the local authority if they have questions about the structural adequacy
Common situations
- Load-bearing wall removed without calculations — the opening is there, but there's no record of a steel beam being properly designed
- Loft conversion without Building Control — usable room upstairs but no completion certificate
- Extension built years ago — your solicitor flagged missing paperwork during a sale
- Chimney breast taken out — no gallows bracket design on file, and the buyer's surveyor raised it
- Garage conversion or internal alterations — done by a previous owner with no documentation
Why this matters
Missing Building Control approval can block a property sale, void your home insurance, and even lead to enforcement action. A regularisation certificate confirms the work meets Building Regulations — or documents what remedial work is needed.
Most solicitors will flag this during conveyancing. Getting it resolved early avoids delays and gives buyers confidence. We've helped dozens of homeowners through this process.
The process
- Call or email us — describe the work that was done and when. Photos are really helpful.
- We visit and assess — we inspect the alteration, check the structural adequacy, and identify any concerns.
- We produce the paperwork — retrospective calculations, drawings, and a structural report if remedial work is needed.
- You submit to Building Control — we can help you with the regularisation application and answer any technical queries they raise.
- Certificate issued — once Building Control is satisfied, you get your regularisation certificate.
Common questions
- How long does a regularisation application take? We typically produce the structural report within 1–2 weeks. Building Control processing times vary by borough but usually 4–8 weeks.
- What if the work isn't structurally adequate? We'll tell you exactly what needs fixing and design the remedial solution. This is still better than discovering it during a sale.
- Can I sell my house without a completion certificate? Technically yes, but most buyers' solicitors will insist on either a regularisation certificate or an indemnity policy. A certificate is the stronger option.
- Is there a time limit for applying? There's no deadline for regularisation applications — you can apply regardless of when the work was done.
