ETC

Quick question - what support do underground drainage pipes need where the house has piled foundations?

Can you post some pictures/sketches of what you want to do?

Take the chimney down and rebuild it with liners, lead trays and flashings.

Why?

I think your BCO is being a bit disingenuous by telling you that the porch creates inner rooms. If this was the case them thousands of houses up and down the country would need EEWs to all habitable rooms not just on the first floor but on the ground floor.

If you have external doors to the kitchen and fire escape windows on the first floor you should be fine.

Rubbish. It's not a habitable room. Look at the definition in Approved Document B. In any case if this were the case every single room on the ground and first floors in all houses all over the country would need EEWs. Go back to him and ask him for a definition of a habitable room/space. EDIT: I have just looked at your floor plan. The Living Room is the inner room (to the first floor bedrooms which I am presuming if this is a new house all have EEs) - not the porch.

@Thorfun @AliG Thanks for your comments. Watch this space - amended version coming soon.

My thoughts.

My thoughts.

Too low. The DPC in the external wall needs to be a minimum of 150mm above FGL. Your BCO will reject it.

Flogging a dead horse comes to mind. Why do you think you are due LDs? Was this a JCT Contract with a pre-determined completion date and was an extension of time requested or granted. As other posters have said - you will need to keep the contractor on side to carry out any remedial works.

My bad……if it’s heated you should insulate it……….I wouldn’t bother putting in heating. Just put a jumper on.

Remove and redo.

FFS it’s a detached non-habitable building with no heating. No insulation is needed. Tell your BCO to wise up!!!

Tomato - tomato.

Or heating?

If you’re not heating it why do you need to insulate it?

Or look at 2.3.

Look at 2.3.

Knock it down and start again.

Go for it. Do up a sketch and send it in. Get @Temp to do a two-storey version. His/her/their photomontage looks great.