ETC

It’s not. Not yet anyway. Give it a few years.

FYI slightly different here in NI. No private BC company only the local council. Also Water and electrical certificates not required. Fire alarm certificate only if a full fire alarm system was installed. All other stuff pretty similar.

No.

Nice plant.

Sorry no - I'm not a builder but I would suggest that a good start would be your local planning conservation officer.

Get rid of that cement mortar for a start!

I think the friendship boat sailed a long time ago.

As others have said your builder’s QS is only interested in his employer - not you. Get your own QS to look at EVERYTHING. He will charge you a few hundred pounds for the privilege but he will fight for every penny of your money and go through the “contract” with a fine toothed comb. Your contractor will have to justify all costs to your QS and will have to produce invoices.

Because it keeps everything in the main channel as it comes around a corner.

Clerestorey.

A bit drastic.

Yes. Trimmers between the existing joists and supported on the existing joists with joist hangers as tight as you can get them against the wall at each end. Then new joists supported on the trimmers with joist hangers half way between the existing joists. You might need to double up the trimmers between the existing joists and you should see if your SE is ok with this. Saves having to bolt anything to the existing walls.

Trimmers between the existing joists against the walls. New joists supported on the trimmers between the existing joists.

Fill the cavity with concrete.

Christ on a bike! Tomato tomato.

SAA=smoke alarm. HAA=heat alarm.

...............................also - have you been asked for EEWs from the Study and Bedroom 1 on the GF? You should also: Change the SAA in the Laundry to a HAA. Put an SAA in the Boot Room (circulation space). Put another HAA in the Kitchen/Family (a HAA has an effective radius of 5.3m).

Make the roof light in Bedroom 2 a compliant EEW.

I really think you need professional advice. You should really speak to a civil engineer who specialises in basement construction.

They won’t. With a roof conversion you will need EEW from each first floor habitable room plus an interlinked SAA no more than 3.0m from each bedroom door.