Range from the cheapest single storey extension £51,960 (Atlant Construction based in W1T) to the dearest single storey extension £53,880 (Longland Construction based in WC1N).
Comparing extension builders estimates for fitting a downstairs toilet gives you an idea of who will be better value but the best way to compare costs is to get actual quotes.
What to do - Get rates and quotes to build a single storey extension in WC1E by posting a job with HaMuch and we will send it to extension builders in WC1E.
