Range from the cheapest single storey extension £34000 (JAMES DAVID BUILDING SERVICES based in NR20) to the dearest single storey extension £47600 (Halls Property Services Ltd - Independent Network Installer based in NR11).
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 Old Catton by posting a job with HaMuch and we will send it to extension builders in Old Catton.
19/08/2024
Single storey extension
Job | Estimate |
Underpinning a house | £16940 |
Build a two storey extension | £87160 |
Build a timber frame extension | £25440 |
Install a swimming pool | £80440 |
Cost to build a single storey extension | £38806 |
Cost to build a side return extension | £31204 |
Install an RSJ | £1640 |
Build an outbuilding | £9440 |
Build a mansard loft conversion | £51440 |
Cost of a loft conversion | £28503 |
Build a kitchen extension | £41440 |
Build a hip to gable loft conversion | £41440 |
Build a granny annexe | £86440 |
Build a garden office | £9440 |
Convert a garage | £15440 |
Build a new garage | £17940 |
Build a flat roof extension | £21440 |
Build a dormer loft conversion | £41440 |
Lay a concrete foundation | £5690 |
Convert a bungalow loft | £28440 |
Basement conversion cost | £31204 |