From £87,800
Member since December 2022
Please refer to for further information. My name is Gus Sperin. I am self-employed electrician, and I have been ...
From £86,944
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
From £86,832
Trusted and professional extension builder in Boldmere. Experienced in all extension buildering work and keeping within budget and on quote. Staffo...
From £86,472
33 years experience focussing on full home refurbishments, extensions, kitchens & bathrooms, rubber roofing, floor screed & loft conversion...
From £86,944
Need to find an Extension Builder near you for all your extension buildering work?
Avonvale Garage Doors provides a local, trusted extensio...
From £86,872
Welcome to WWM Property Solutions, where we specialize in creating exceptional outdoor and indoor spaces tailored to your unique lifestyle. As a le...
From £86,704
AJ Home Improvements is an established extension buildering business in Boldmere. We come highly recommended and provide competitive quotes for you...
From £86,984
Brickfast Builders is an established extension buildering business in Boldmere. We come highly recommended and provide competitive quotes for your ...
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 £86,760
R.G Construction is an established and experienced local extension builder in Boldmere. Please contact us for a free, no obligation quote and compe...

Building a granny annexe ranges from £86,472 (Simms Building Services Ltd based in CV2) to £87,800 (Sperin Services 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 Boldmere by posting a job with HaMuch. We will send it to extension builders in Boldmere who will be happy to help you.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Granny Annexe near Sutton Coldfield | £29 | £228 |
| Granny Annexe near Birmingham | £29 | £227 |
| Granny Annexe near Walsall | £29 | £226 |
| Granny Annexe near Smethwick | £29 | £226 |
| Granny Annexe near West Bromwich | £29 | £227 |
| Granny Annexe near Sandwell | £29 | £229 |
| Granny Annexe near Brownhills | £29 | £225 |
| Granny Annexe near Wednesbury | £29 | £227 |
| Granny Annexe near Bloxwich | £28 | £226 |
| 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 - £17,430

Two storey extension - £87,894

Build a timber frame extension - £25,930

Build a swimming pool - £80,930

Single storey extension - £53,592

Side return extension - £40,708

Install an RSJ - £2,130

Outbuilding - £9,930

Build a Mansard loft conversion - £51,930

Loft conversion - £33,090

Build a kitchen extension - £41,930

Hip to gable loft conversion - £41,930

Granny annexe - £86,930

Garden office - £9,930

Convert a Garage - £15,930

Garage - £18,430

Build a flat roof extension - £21,930

Build a dormer loft conversion - £41,930

Concrete foundations - £6,180

Convert a bungalow loft - £28,930

Convert a basement - £36,708