Range from the cheapest single storey extension £46960 (Flow Property Services based in EC4M) to the dearest single storey extension £74000 (Q Lofts and Extensions based in EC1R).
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 St Paul's by posting a job with HaMuch and we will send it to extension builders in St Paul's.
Job | Estimate |
Underpinning a house | £17432 |
Build a two storey extension | £87899 |
Build a timber frame extension | £25932 |
Install a swimming pool | £80932 |
Cost to build a single storey extension | £48650 |
Cost to build a side return extension | £36740 |
Install an RSJ | £2132 |
Build an outbuilding | £9932 |
Build a mansard loft conversion | £51932 |
Cost of a loft conversion | £33117 |
Build a kitchen extension | £41932 |
Build a hip to gable loft conversion | £41932 |
Build a granny annexe | £86932 |
Build a garden office | £9932 |
Convert a garage | £15932 |
Build a new garage | £18432 |
Build a flat roof extension | £21932 |
Build a dormer loft conversion | £41932 |
Lay a concrete foundation | £6182 |
Convert a bungalow loft | £28932 |
Basement conversion cost | £36740 |