No collar in cut roof query ?

what do you mean "out it"?

in regards to the prelim BER, when the BCARs online system came in first, different LAs had different opinions on what was required, so this build may have fallen into this time period. Its the local authority at the end of the day who is responsible fo requesting the documentation and deciding whats valid or not.

on the actual build, to be pedantic its not an "attic conversion" if its constructed at the time of the original build, you can only convert something which already exists. But at a lack of any other way to call it, it complies with nothing. Its not habitable, its storage space with a fixed stairs. Whether a collar tie was required was down to the certifiers opinion. The rafters do look to be significant (9x 2s?), and the span between supports may be allowed under eurocode 5.

Nothing makes any sense here.

It can't be "existing solid stone walls"

So either the council didn't bother to read anything submitted, or the build was a renovation of an existing structure

Joebre, may I ask what your inclusion in this process is?

Are you an inspector engineer working on behalf of perspective purchasers?

We cannot comment on structural issues here, read the forum charter.

But I will revert back to my first comment where this type of construction may be possible depending on the sizes of individual elements.

All the stuff about "prelim bers" is just red herrings. As far as the vendor is concerned, if the local authority validated the commencement notice application then they are clear to start.

well the builder is completely incorrect, as a BER is required on a new home upon first occupation.

plus, theres no way the assigned certifier will know if it complies with Part L with a "new final" BER assessment being carried out.

have you been engaged to provide Part A certification, or advise the builder as to how to provide compliance?

If you think the roof is unsafe, you will need to advise your clients as such and describe why. if theres a deposit paid there may be contractual issues which could cause financial problems, so youd want to have all your ducks in a row.

If the builders certifier can provide certification with Part A then unfortunately your clients will be left with the choice as to whether to accept the certifiers certification or your advice.

at a minimum, if all this work is being carried out in contravention of the initial CN application, then you should advise the clients to request certification of exemption from planning regulations AND compliance with building regulations.

Most other houses had similar work done on their attics during the course of the build.

thats the nub then.

its highly unlikely the assigned certifier for the scheme would let so many roof constructions happen without proof of Part A compliance. There is likely to have been additional information submitted to the CN to reflect this, and thus Certs of completion provided to the houses which are already finished.

as to your engagement, slightly unusual. A snag list is carried out on completion, not earlier. its questionable as to what power of recourse you have if you spot something less that optimal.