For those if you that enjoy estimating - had a loft company round to give me a quote last week. Surrey, expensive area, (average 3 bed house price 800-900k), but small house (900 sq ft) We want dormer, tiny shower room, will make house 3 beds instead of 2. 2 velux, new slate roof to front slope, 40cm raise to roof. There may be a small prize for the closest guess!