From £86,704
AJ Home Improvements is an established extension buildering business in Balsall Heath. We come highly recommended and provide competitive quotes fo...
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 Balsall Heath. We come highly recommended and provide competitive quotes for ...
From £86,864
Need to find an Extension Builder near you for all your extension buildering work?
LC BUILDING SERVICES provides a local, trusted extension...
From £86,840
Relax... you have found a reliable extension builder in Balsall Heath. MD Services is a friendly and reliable company based in Balsall Heath who co...
From £86,472
33 years experience focussing on full home refurbishments, extensions, kitchens & bathrooms, rubber roofing, floor screed & loft conversion...
From £86,832
Need to find an Extension Builder near you for all your extension buildering work?
Holmes roofing&property maintenance provides a local, tr...
From £86,704
Prompt .tidy .exspearianced.quality of work
From £86,976
For all your home renovation requirements, painting and decorating, Wallpapering and Stripping, Skirting boards & Architraves, Exterior wall painti...
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 ...

Building a granny annexe ranges from £86,472 (Simms Building Services Ltd based in CV2) 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 Balsall Heath by posting a job with HaMuch. We will send it to extension builders in Balsall Heath who will be happy to help you.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Granny Annexe near Birmingham | £29 | £227 |
| Granny Annexe near Smethwick | £29 | £226 |
| Granny Annexe near Oldbury | £29 | £227 |
| Granny Annexe near Solihull | £29 | £231 |
| Granny Annexe near Halesowen | £29 | £227 |
| Granny Annexe near West Bromwich | £29 | £227 |
| Granny Annexe near Sutton Coldfield | £29 | £228 |
| Granny Annexe near Rowley Regis | £29 | £226 |
| Granny Annexe near Sandwell | £29 | £229 |
| Granny Annexe near Knowle | £31 | £241 |
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 - £17,416

Two storey extension - £87,874

Build a timber frame extension - £25,916

Build a swimming pool - £80,916

Single storey extension - £53,320

Side return extension - £40,555

Install an RSJ - £2,116

Outbuilding - £9,916

Build a Mansard loft conversion - £51,916

Loft conversion - £32,963

Build a kitchen extension - £41,916

Hip to gable loft conversion - £41,916

Granny annexe - £86,916

Garden office - £9,916

Convert a Garage - £15,916

Garage - £18,416

Build a flat roof extension - £21,916

Build a dormer loft conversion - £41,916

Concrete foundations - £6,166

Convert a bungalow loft - £28,916

Convert a basement - £36,555