GMC wrote:
I am looking to extend my house by adding a two storey side return.
Dimensions would be roughly 10m long by 4m wide. The space downstairs
would be a garage and kitchen extension, upstairs would be a bedroom and
en-suite. Anyone care to hazard a cost for this? Ballpark would be fine,
or even an average m2 price. Location is central Scotland.

TIA
£1000 a sq meter (floor area) fitted out reasonably so £80k or so tops.

Probably £45-60k bare shell.