Extension builder estimates (based on hourly rates) to build a single storey extension in Otham
Range from the cheapest single storey extension £42000 (HOMESTAR based in BS7) to the dearest single storey extension £58000 (Prestige plumbing&bathroom fittings based in BS2).
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 Otham by posting a job with HaMuch and we will send it to extension builders in Otham.
Estimates for common extension builder jobs in Otham;
| Job | Estimate |
| Underpinning a house | £17289 |
| Build a two storey extension | £87684 |
| Build a timber frame extension | £25789 |
| Install a swimming pool | £80789 |
| Cost to build a single storey extension | £45782 |
| Cost to build a side return extension | £35128 |
| Install an RSJ | £1989 |
| Build an outbuilding | £9789 |
| Build a mansard loft conversion | £51789 |
| Cost of a loft conversion | £31773 |
| Build a kitchen extension | £41789 |
| Build a hip to gable loft conversion | £41789 |
| Build a granny annexe | £86789 |
| Build a garden office | £9789 |
| Convert a garage | £15789 |
| Build a new garage | £18289 |
| Build a flat roof extension | £21789 |
| Build a dormer loft conversion | £41789 |
| Lay a concrete foundation | £6039 |
| Convert a bungalow loft | £28789 |
| Basement conversion cost | £35128 |