Extension builder estimates (based on hourly rates) to build a single storey extension in OX27
Range from the cheapest single storey extension £37040 (MJD Builder based in OX5) to the dearest single storey extension £66000 (Land building services based in OX3).
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 OX27 by posting a job with HaMuch and we will send it to extension builders in OX27.
Estimates for common extension builder jobs in OX27;
| Job | Estimate |
| Underpinning a house | £17263 |
| Build a two storey extension | £87644 |
| Build a timber frame extension | £25763 |
| Install a swimming pool | £80763 |
| Cost to build a single storey extension | £45258 |
| Cost to build a side return extension | £34832 |
| Install an RSJ | £1963 |
| Build an outbuilding | £9763 |
| Build a mansard loft conversion | £51763 |
| Cost of a loft conversion | £31527 |
| Build a kitchen extension | £41763 |
| Build a hip to gable loft conversion | £41763 |
| Build a granny annexe | £86763 |
| Build a garden office | £9763 |
| Convert a garage | £15763 |
| Build a new garage | £18263 |
| Build a flat roof extension | £21763 |
| Build a dormer loft conversion | £41763 |
| Lay a concrete foundation | £6013 |
| Convert a bungalow loft | £28763 |
| Basement conversion cost | £34832 |