I am living in the 80's or I am right to be shocked at being quoted £50K for a 6 metre square extension? This price excludes VAT and doesn't include the cost of the flooring and the utility room furniture. It also doesn't include the £10K it has cost for plans and planning permission?! It's the first quote I have received so I am hoping the other two might be more realistic......When we did building work 20 years ago the same project cost my £5K (and we were in London at the time).