Non-standard construction
A new block is said to use cross-laminated timber floors. Can a visual inspection of one flat confirm that specification?
No. A visual inspection of one flat cannot confirm that the block's floors are cross-laminated timber. You see finishes: a ceiling, a floor covering, perhaps a boxed service zone. The brochure's specification is not what that visit has seen. The survey should not be read as proof of the structural timber, its extent, or how the floors were built. Do not invent a fire performance for a material the inspection did not expose. Keep the sales claim in the sales pack.
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?
One flat is a small window on a whole structure. Even inside it, fitted floors and plasterboard ceilings hide the deck. A surveyor can note a spring, a stain, a slope or a gap. Those notes are about what was available to see. They are not a verification that every floor in the block is cross-laminated timber, or that the timber matches a drawing. Copying the brochure into the report as if it had been inspected overstates the visit.
If you need the structural specification, ask the solicitor for the drawings and the warranty pack, and read them as documents. They still are not a substitute for what the surveyor could see in this flat. Where the ceiling was closed, the structure above it was not inspected. Do not fill that gap with a fire performance, a span or a product assurance the report does not contain. An unseen specification is an unseen specification.
What should you ask your surveyor?
- What of the floor or ceiling build-up was actually visible in this flat?
- Are you confirming cross-laminated timber, or only recording what the brochure says?
- Which parts of the structure did you leave as not seen?
What are the typical next steps?
- Do not treat the brochure as confirmation from this flat's inspection.
- Keep any structural drawings with the solicitor, separate from the survey.
- Do not add a fire performance the visual inspection did not state.
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
If the ceiling is painted and flat, is the timber confirmed?
No. Paint and a flat ceiling hide the structure. They do not show whether the floor is cross-laminated timber or something else the brochure did not mention.
Does one flat's survey speak for every floor in the block?
No. The visit was to one flat. It cannot confirm a block-wide specification, and it cannot see through finishes that stayed in place.