Relax... you have found a reliable extension builder in MK18. D Beagle Building Contractors is a friendly and reliable company based in MK18 who co...
We are Cognitive Construction, a forward-thinking design & build company.Our houses are our castles and we take great pride in transforming homes a...

Outbuilding costs in MK18 range from the cheapest of £10,016 (D Beagle Building Contractors based in MK18) to the dearest of £10,072 (Cognitive Construction Ltd. based in MK18), 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 MK18 by posting a job with HaMuch and we will send it to extension builders.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Outbuilding near Aylesbury Vale | £36 | £246 |
| Outbuilding near Bicester | £35 | £249 |
| Outbuilding near Milton Keynes | £39 | £263 |
| Outbuilding near Bletchley | £39 | £265 |
| Outbuilding near Cherwell | £35 | £249 |
| Outbuilding near Aylesbury | £42 | £270 |
| Outbuilding near Leighton Buzzard | £38 | £270 |
| Outbuilding near Banbury | £33 | £239 |
| Outbuilding near Northampton | £35 | £239 |
| Outbuilding near Dunstable | £41 | £274 |
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 - £17,544

Two storey extension - £88,066

Build a timber frame extension - £26,044

Build a swimming pool - £81,044

Single storey extension - £55,880

Side return extension - £41,995

Install an RSJ - £2,244

Outbuilding - £10,044

Build a Mansard loft conversion - £52,044

Loft conversion - £34,163

Build a kitchen extension - £42,044

Hip to gable loft conversion - £42,044

Granny annexe - £87,044

Garden office - £10,044

Convert a Garage - £16,044

Garage - £18,544

Build a flat roof extension - £22,044

Build a dormer loft conversion - £42,044

Concrete foundations - £6,294

Convert a bungalow loft - £29,044

Convert a basement - £37,995