Extension builder estimates (based on hourly rates) to build a single storey extension in BD5
Range from the cheapest single storey extension £29200 (T & B Builders based in WF17) to the dearest single storey extension £45200 (DAVID HARRISON BUILDING based in BD12).
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 BD5 by posting a job with HaMuch and we will send it to extension builders in BD5.
Estimates for common extension builder jobs in BD5;
| Job | Estimate |
| Underpinning a house | £17039 |
| Build a two storey extension | £87308 |
| Build a timber frame extension | £25539 |
| Install a swimming pool | £80539 |
| Cost to build a single storey extension | £40771 |
| Cost to build a side return extension | £32309 |
| Install an RSJ | £1739 |
| Build an outbuilding | £9539 |
| Build a mansard loft conversion | £51539 |
| Cost of a loft conversion | £29424 |
| Build a kitchen extension | £41539 |
| Build a hip to gable loft conversion | £41539 |
| Build a granny annexe | £86539 |
| Build a garden office | £9539 |
| Convert a garage | £15539 |
| Build a flat roof extension | £21539 |
| Build a dormer loft conversion | £41539 |
| Lay a concrete foundation | £5789 |
| Convert a bungalow loft | £28539 |
| Basement conversion cost | £32309 |