On Thu, 30 May 2019 16:53:07 +0100, Chris Hogg wrote:



Do you really have to use an architect? A good builder should be able
to do all that.

Ten years ago, for a simple ground floor extension I got a designer to
produce building regs drawings which I also used as a basis for
getting quotes. I think they cost £350 - Google building regulations
drawings and the area concerned to find services local to you.