Just received the first stab at costing from Estimators Online (as an aside very easy to deal with). It obviously doesn't include a few major things as they have no ability to price them on the system, but it gives a good indication of prices. Or does it? It seems cheep (£237k) and the project timeline (25 weeks) seems fast or am I missing something?    Our build is 225sqm with 260sqm of external walls.   Here is the output from their website, big things to add/remove/change