From £10,064
At Building Better Spaces we have been fitting bespoke bathrooms for ten years.We pride ourselves on being the go-to bathroom fitters for d...
From £10,416
BURCROFT BUILDERS is an established and experienced local extension builder in MK17. Please contact us for a free, no obligation quote and competit...
From £10,088
Need to find an Extension Builder near you for all your extension buildering work?
Go-Large Design & Build Ltd provides a local, trusted ex...
From £10,224
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
From £10,064
Relax... you have found a reliable extension builder in MK17. GD RAWLINGS BUILDING is a friendly and reliable company based in MK17 who consider no...
From £9,848
Need an Extension Builder in MK17? Highland Homes & Gardens has been helping local clients (20 mile radius) with their extension buildering jobs fo...
From £10,152
Our building services company Dallcompanies Limited was established in May 2023, but have been helping customers in Milton Keynes and the surroundi...
From £10,016
Trusted and professional extension builder in MK17. Experienced in all extension buildering work and keeping within budget and on quote. WOBURN BUI...
From £10,440
EXPERT BUILDING SERVICES is an established and experienced local extension builder in MK17. Please contact us for a free, no obligation quote and c...
From £10,160
We are a small friendly company who offer a wide range of electrical services to all domestic, commercial and industrial clients.We carry o...

Garden offices range from the cheapest of £9,848 (Highland Homes & Gardens based in MK4) to the dearest of £10,440 (EXPERT BUILDING SERVICES based in MK17), but these are only estimates.
The best way to compare costs is to get actual quotes.
Get rates and quotes to build a garden office in MK17 by posting a job with HaMuch. We'll send it to extension builders in MK17.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Garden Office near Bletchley | £39 | £265 |
| Garden Office near Milton Keynes | £39 | £263 |
| Garden Office near Leighton Buzzard | £38 | £270 |
| Garden Office near Ampthill | £38 | £258 |
| Garden Office near Mid Bedfordshire | £42 | £276 |
| Garden Office near Dunstable | £41 | £270 |
| Garden Office near Aylesbury Vale | £36 | £246 |
| Garden Office near Aylesbury | £42 | £270 |
| Garden Office near Kempston | £44 | £273 |
| Garden Office near South Bedfordshire | £45 | £278 |
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 - £17,647

Two storey extension - £88,221

Build a timber frame extension - £26,147

Build a swimming pool - £81,147

Single storey extension - £57,944

Side return extension - £43,156

Install an RSJ - £2,347

Outbuilding - £10,147

Build a Mansard loft conversion - £52,147

Loft conversion - £35,130

Build a kitchen extension - £42,147

Hip to gable loft conversion - £42,147

Granny annexe - £87,147

Garden office - £10,147

Convert a Garage - £16,147

Garage - £18,647

Build a flat roof extension - £22,147

Build a dormer loft conversion - £42,147

Concrete foundations - £6,397

Convert a bungalow loft - £29,147

Convert a basement - £39,156