Extension builder estimates (based on hourly rates) to build a single storey extension in BN20
Range from the cheapest single storey extension £34000 (Pro For You based in BN22) to the dearest single storey extension £53200 (Insite Sepecialists based in BN23).
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 BN20 by posting a job with HaMuch and we will send it to extension builders in BN20.
Estimates for common extension builder jobs in BN20;
| Job | Estimate |
| Underpinning a house | £17207 |
| Build a two storey extension | £87560 |
| Build a timber frame extension | £25707 |
| Install a swimming pool | £80707 |
| Cost to build a single storey extension | £44131 |
| Cost to build a side return extension | £34199 |
| Install an RSJ | £1907 |
| Build an outbuilding | £9707 |
| Build a mansard loft conversion | £51707 |
| Cost of a loft conversion | £30999 |
| Build a kitchen extension | £41707 |
| Build a hip to gable loft conversion | £41707 |
| Build a granny annexe | £86707 |
| Build a garden office | £9707 |
| Convert a garage | £15707 |
| Build a new garage | £18207 |
| Build a flat roof extension | £21707 |
| Build a dormer loft conversion | £41707 |
| Lay a concrete foundation | £5957 |
| Convert a bungalow loft | £28707 |
| Basement conversion cost | £34199 |