From £86,952
AKS BUILDING LIMITED is a trusted extension builder serving customers in B90 and the surrounding area. Contact us to today to get a competitive quo...
From £86,584
S J Byrne Construction Limited is a trusted extension builder serving customers in B90 and the surrounding area. Contact us to today to get a compe...
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 £86,728
Relax... you have found a reliable extension builder in B90. F.I.I Building Services Ltd is a friendly and reliable company based in B90 who consid...
From £86,968
We are a forward thinking, award winning design and build company based in Solihull in the West Midlands. We strive to deliver the best experience ...
From £86,928
Relax... you have found a reliable extension builder in B90. First Choice Builder is a friendly and reliable company based in B90 who consider no j...
From £86,784
Form Construction Midlands Limited is a trusted extension builder serving customers in B90 and the surrounding area. Contact us to today to get a c...
From £86,592
Need to find an Extension Builder near you for all your extension buildering work?
JT Home Improvement provides a local, trusted extension ...
From £86,928
JEWEL BUILDERS LTD are here to help customers who need an Extension Builder in B90. We offer a competitive rate to complete all your extension buil...
From £87,064
I have been in the building industry for 28 years and have carried out extensions,loft conversions, knock throughs, plastering, carpentry,roofing a...

Building a granny annexe ranges from £86,584 (S J Byrne Construction Limited based in B90) to £87,064 (MYBUILD based in B93), 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 B90 by posting a job with HaMuch. We will send it to extension builders in B90 who will be happy to help you.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Granny Annexe near Solihull | £29 | £231 |
| Granny Annexe near Knowle | £31 | £241 |
| Granny Annexe near Birmingham | £29 | £227 |
| Granny Annexe near Smethwick | £29 | £226 |
| Granny Annexe near Oldbury | £29 | £227 |
| Granny Annexe near Halesowen | £29 | £227 |
| Granny Annexe near Sutton Coldfield | £29 | £228 |
| Granny Annexe near Bromsgrove | £31 | £237 |
| Granny Annexe near Rowley Regis | £29 | £226 |
| Granny Annexe near West Bromwich | £29 | £227 |
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 - £17,347

Two storey extension - £87,771

Build a timber frame extension - £25,847

Build a swimming pool - £80,847

Single storey extension - £51,944

Side return extension - £39,781

Install an RSJ - £2,047

Outbuilding - £9,847

Build a Mansard loft conversion - £51,847

Loft conversion - £32,318

Build a kitchen extension - £41,847

Hip to gable loft conversion - £41,847

Granny annexe - £86,847

Garden office - £9,847

Convert a Garage - £15,847

Garage - £18,347

Build a flat roof extension - £21,847

Build a dormer loft conversion - £41,847

Concrete foundations - £6,097

Convert a bungalow loft - £28,847

Convert a basement - £35,781