Outbuildings and conservatories
An orangery lantern is glazed and no competent-person certificate is in the pack. Why is the missing paper not the only question the frames raise?
The missing paper is not the only question the frames raise. An orangery lantern is glazed and no competent-person certificate is in the pack, so one route to building-regulations compliance is simply not documented. Competent-person schemes are one route, not the only route, and the survey does not issue that certificate. A missing certificate does not describe the frames, the glazing bars or how the lantern meets the roof. The visit recorded the lantern and the absent paper. It has not decided the lantern was built correctly or incorrectly.
Last reviewed 24 October 2026. Written for buyers in England and Wales unless this answer says otherwise. No named surveyor has signed this page. It is general guidance, not a report on your house, and not legal advice.
What is the fuller explanation?
Frames can leak, twist or lose their glazing whether or not a certificate once existed. The survey can note misted glass, stained plaster under the lantern, or bars that look tired. Those are condition points. They are not a certificate, and the absence of a certificate is not a condition rating of the metal or timber. Other routes, including a building-control application, can also be how this sort of work was signed off. None of that was in the pack, and none of it was decided here.
Ask your solicitor to search for a certificate or a building-control completion, and keep whatever turns up outside the survey wording. If the frames themselves worry you, ask a glazing or roofing specialist to inspect them. Do not tell a lender the lantern complies because it is glazed and standing, and do not tell them it is unlawful solely because one class of paper was missing. The survey has not made either decision.
What should you ask your surveyor?
- Was a competent-person certificate in the pack for the lantern?
- Did the visit inspect the frames as a glazing specialist would?
- Is the missing paper being treated as the only defect?
What are the typical next steps?
- Keep the missing certificate and the frame condition as separate limits.
- Ask your solicitor to search for a certificate or a completion record.
- Do not tell a lender the lantern is either compliant or unlawful.
Costs vary with the building and with who you instruct. Where this page does not cite a published figure, ask the surveyor, a relevant specialist, or your solicitor for a written quote. Do not treat a forum average as the price.
Also asked about this
Is a competent-person scheme the only way the lantern could comply?
No. Competent-person schemes are one route to building-regulations compliance, not the only route. A building-control application is another. The survey did not find a competent-person certificate and did not issue one of its own. It also did not decide that no other route was used. The frames still need their own condition reading, which this visit did not complete as specialist work.
Does misted glass in the lantern decide the paperwork?
No. Misted glass, if it was seen, is a condition of the unit. It does not prove a certificate was never issued, and a clear unit would not prove a certificate exists. The pack had no competent-person certificate. That gap and the state of the glass are different facts. Report them separately, and do not let one answer the other.