Range from the cheapest single storey extension £43440 (Black Olive Construction Ltd based in BN1) to the dearest single storey extension £90000 (AM General Building Brighton Ltd based in BN2).
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 Kemptown by posting a job with HaMuch and we will send it to extension builders in Kemptown.
07/04/2024
Single storey extension
Job | Estimate |
Underpinning a house | £17324 |
Build a two storey extension | £87736 |
Build a timber frame extension | £25824 |
Install a swimming pool | £80824 |
Cost to build a single storey extension | £46474 |
Cost to build a side return extension | £35516 |
Install an RSJ | £2024 |
Build an outbuilding | £9824 |
Build a mansard loft conversion | £51824 |
Cost of a loft conversion | £32097 |
Build a kitchen extension | £41824 |
Build a hip to gable loft conversion | £41824 |
Build a granny annexe | £86824 |
Build a garden office | £9824 |
Convert a garage | £15824 |
Build a new garage | £18324 |
Build a flat roof extension | £21824 |
Build a dormer loft conversion | £41824 |
Lay a concrete foundation | £6074 |
Convert a bungalow loft | £28824 |
Basement conversion cost | £35516 |