I've currently got a single storey kitchen and bathroom, measuring about 4m by 10m, built to building regs of about 10yrs ago.
I'm looking to have a 1st floor extension added above about a 1/4 it (2.5m by 2.5m) for an additional bathroom.
Just wondering what the construction options are. There is no steel support in the current flat roof, so I always assumed the thing to do would be to add a couple and build in block work. But had a builder look recently and he seem to think that he could build in timber, with timber cladding, on the current roof with no steel.
Does that sound reasonable? He's quoted under £4k, which to me sounds about 1/2 what I though it might cost.