Extension builder estimates (based on hourly rates) to build a single storey extension in Lewes
Range from the cheapest single storey extension £38800 (Baldwin Builders based in BN8) 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 Lewes by posting a job with HaMuch and we will send it to extension builders in Lewes.
Estimates for common extension builder jobs in Lewes;
| Job | Estimate |
| Underpinning a house | £17304 |
| Build a two storey extension | £87706 |
| Build a timber frame extension | £25804 |
| Install a swimming pool | £80804 |
| Cost to build a single storey extension | £46077 |
| Cost to build a side return extension | £35293 |
| Install an RSJ | £2004 |
| Build an outbuilding | £9804 |
| Build a mansard loft conversion | £51804 |
| Cost of a loft conversion | £31911 |
| Build a kitchen extension | £41804 |
| Build a hip to gable loft conversion | £41804 |
| Build a granny annexe | £86804 |
| Build a garden office | £9804 |
| Convert a garage | £15804 |
| Build a new garage | £18304 |
| Build a flat roof extension | £21804 |
| Build a dormer loft conversion | £41804 |
| Lay a concrete foundation | £6054 |
| Convert a bungalow loft | £28804 |
| Basement conversion cost | £35293 |