Range from the cheapest single storey extension £34000 (Tigerson Ltd based in SA16) to the dearest single storey extension £58000 (KD Construction based in SA15).
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 SA4 by posting a job with HaMuch and we will send it to extension builders in SA4.
Job | Estimate |
Underpinning a house | £17064 |
Build a two storey extension | £87345 |
Build a timber frame extension | £25564 |
Install a swimming pool | £80564 |
Cost to build a single storey extension | £41270 |
Cost to build a side return extension | £32590 |
Install an RSJ | £1764 |
Build an outbuilding | £9564 |
Build a mansard loft conversion | £51564 |
Cost of a loft conversion | £29658 |
Build a kitchen extension | £41564 |
Build a hip to gable loft conversion | £41564 |
Build a granny annexe | £86564 |
Build a garden office | £9564 |
Convert a garage | £15564 |
Build a flat roof extension | £21564 |
Build a dormer loft conversion | £41564 |
Lay a concrete foundation | £5814 |
Convert a bungalow loft | £28564 |
Basement conversion cost | £32590 |