Chris Czerwinski
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Outbuilding costs in Wycombe range from the cheapest of £10,032 (GREENWORKS CONSTRUCTION based in SL7) to the dearest of £10,392 (Jesson ladscaping and construction based in hp15), but these are just estimates.
Comparing extension builders estimates for building an outbuilding gives you an idea of who will be better value, but the best way to compare costs is to get actual quotes.
Get rates and quotes to build an outbuilding in Wycombe by posting a job with HaMuch and we will send it to extension builders.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Outbuilding near Wycombe | £40 | £271 |
| Outbuilding near High Wycombe | £39 | £272 |
| Outbuilding near Hazlemere | £40 | £272 |
| Outbuilding near Maidenhead | £41 | £273 |
| Outbuilding near Chesham | £42 | £277 |
| Outbuilding near Gerrards Cross | £43 | £282 |
| Outbuilding near South Oxfordshire | £36 | £253 |
| Outbuilding near Aylesbury | £42 | £270 |
| Outbuilding near Slough | £42 | £272 |
| Outbuilding near Caversham | £38 | £265 |
Whether you’re looking to extend your kitchen with a side return extension or you want to convert your basement into a liveable space, read our cost guides to get an idea of how much each project costs before getting a more accurate quote from our database of reliable tradespeople.

Underpin a building - £17,720

Two storey extension - £88,330

Build a timber frame extension - £26,220

Build a swimming pool - £81,220

Single storey extension - £59,400

Side return extension - £43,975

Install an RSJ - £2,420

Outbuilding - £10,220

Build a Mansard loft conversion - £52,220

Loft conversion - £35,813

Build a kitchen extension - £42,220

Hip to gable loft conversion - £42,220

Granny annexe - £87,220

Garden office - £10,220

Convert a Garage - £16,220

Garage - £18,720

Build a flat roof extension - £22,220

Build a dormer loft conversion - £42,220

Concrete foundations - £6,470

Convert a bungalow loft - £29,220

Convert a basement - £39,975