Our building services company Dallcompanies Limited was established in May 2023, but have been helping customers in Milton Keynes and the surroundi...
Need an Extension Builder in Walton? Highland Homes & Gardens has been helping local clients (20 mile radius) with their extension buildering jobs ...
Trusted and professional extension builder in Walton. Experienced in all extension buildering work and keeping within budget and on quote. Langton ...
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
Relax... you have found a reliable extension builder in Walton. Dean Prichard Building Services is a friendly and reliable company based in Walton ...
Need to find an Extension Builder near you for all your extension buildering work?
Asanta Builder provides a local, trusted extension build...
Need to find an Extension Builder near you for all your extension buildering work?
Go-Large Design & Build Ltd provides a local, trusted ex...
EXPERT BUILDING SERVICES is an established and experienced local extension builder in Walton. Please contact us for a free, no obligation quote and...
Need an Extension Builder in Walton? D Catt Builders has been helping local clients (20 mile radius) with their extension buildering jobs for many ...
Trusted and professional extension builder in Walton. Experienced in all extension buildering work and keeping within budget and on quote. K FREEMA...

Building a granny annexe ranges from £86,624 (K FREEMAN BUILDERS LIMITED based in MK43) to £87,440 (EXPERT BUILDING SERVICES based in MK17), but these are just estimates that can help give you an idea of who will be better value in your area.
The best thing to do is to get quotes to build a granny annexe in Walton by posting a job with HaMuch. We will send it to extension builders in Walton who will be happy to help you.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Granny Annexe near Bletchley | £39 | £265 |
| Granny Annexe near Milton Keynes | £39 | £263 |
| Granny Annexe near Leighton Buzzard | £38 | £270 |
| Granny Annexe near Ampthill | £38 | £258 |
| Granny Annexe near Mid Bedfordshire | £42 | £276 |
| Granny Annexe near Kempston | £44 | £273 |
| Granny Annexe near Dunstable | £41 | £274 |
| Granny Annexe near Bedford | £45 | £278 |
| Granny Annexe near South Bedfordshire | £45 | £278 |
| Granny Annexe near Aylesbury Vale | £36 | £246 |
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 - £17,566

Two storey extension - £88,098

Build a timber frame extension - £26,066

Build a swimming pool - £81,066

Single storey extension - £56,312

Side return extension - £42,238

Install an RSJ - £2,266

Outbuilding - £10,066

Build a Mansard loft conversion - £52,066

Loft conversion - £34,365

Build a kitchen extension - £42,066

Hip to gable loft conversion - £42,066

Granny annexe - £87,066

Garden office - £10,066

Convert a Garage - £16,066

Garage - £18,566

Build a flat roof extension - £22,066

Build a dormer loft conversion - £42,066

Concrete foundations - £6,316

Convert a bungalow loft - £29,066

Convert a basement - £38,238