From £87,800
Member since December 2022
Hi, My name is Gus Sperin. I am self-employed electrician, and I have been running my business since 2010. I have been in the electrical ...
From £86,704
AJ Home Improvements is an established extension buildering business in WS12. We come highly recommended and provide competitive quotes for your wo...
From £86,984
Need to find an Extension Builder near you for all your extension buildering work?
Atwal Building Services Ltd provides a local, trusted ex...
From £86,984
Brickfast Builders is an established extension buildering business in WS12. We come highly recommended and provide competitive quotes for your work...
From £86,760
R.G Construction is an established and experienced local extension builder in WS12. Please contact us for a free, no obligation quote and competiti...
From £86,664
Experienced extension builder ready to quote for your work. S B Evans Bricklaying Contractor Ltd is the best extension builder in WS12. No obligati...
From £86,704
Prompt .tidy .exspearianced.quality of work
From £86,840
Need to find an Extension Builder near you for all your extension buildering work?
Willbuild provides a local, trusted extension buildering...
From £86,984
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
From £86,936
Zygi&Bob Builders is an established extension buildering business in WS12. We come highly recommended and provide competitive quotes for your work....

Building a granny annexe ranges from £86,664 (S B Evans Bricklaying Contractor Ltd based in WV12) to £87,800 (Sperin Interiors based in B66), 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 WS12 by posting a job with HaMuch. We will send it to extension builders in WS12 who will be happy to help you.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Granny Annexe near Cannock | £28 | £227 |
| Granny Annexe near Burntwood | £29 | £229 |
| Granny Annexe near Rugeley | £30 | £230 |
| Granny Annexe near Brownhills | £29 | £225 |
| Granny Annexe near Bloxwich | £28 | £226 |
| Granny Annexe near Lichfield | £29 | £226 |
| Granny Annexe near Walsall | £29 | £226 |
| Granny Annexe near Stafford | £29 | £224 |
| Granny Annexe near Willenhall | £29 | £225 |
| Granny Annexe near Darlaston | £29 | £226 |
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 - £17,436

Two storey extension - £87,904

Build a timber frame extension - £25,936

Build a swimming pool - £80,936

Single storey extension - £53,720

Side return extension - £40,780

Install an RSJ - £2,136

Outbuilding - £9,936

Build a Mansard loft conversion - £51,936

Loft conversion - £33,150

Build a kitchen extension - £41,936

Hip to gable loft conversion - £41,936

Granny annexe - £86,936

Garden office - £9,936

Convert a Garage - £15,936

Garage - £18,436

Build a flat roof extension - £21,936

Build a dormer loft conversion - £41,936

Concrete foundations - £6,186

Convert a bungalow loft - £28,936

Convert a basement - £36,780