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Select your affordable Coseley extension builder
Daryl Watson
Welcome to WWM Property Solutions, where we specialize in creating exceptional outdoor and indoor spaces tailored to your unique lifestyle. As a le...
Prompt .tidy .exspearianced.quality of work
Have Faith Plasterers is an established and experienced local extension builder in Coseley. Please contact us for a free, no obligation quote and c...
Zygi&Bob Builders is an established extension buildering business in Coseley. We come highly recommended and provide competitive quotes for your wo...
Adam Williams
Need to find an Extension Builder near you for all your extension buildering work?
Willbuild provides a local, trusted extension buildering...
Oakham Brickwork is an established extension buildering business in Coseley. We come highly recommended and provide competitive quotes for your wor...
Nav Younis
For all your home renovation requirements, painting and decorating, Wallpapering and Stripping, Skirting boards & Architraves, Exterior wall painti...
Need to find an Extension Builder near you for all your extension buildering work?
Atwal Building Services Ltd provides a local, trusted ex...
R.G Construction is an established and experienced local extension builder in Coseley. Please contact us for a free, no obligation quote and compet...

Building a granny annexe ranges from £86,704 (Premier Estates Home & Gardens based in WV14) to £86,984 (Have Faith Plasterers based in B70), 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 Coseley by posting a job with HaMuch. We will send it to extension builders in Coseley who will be happy to help you.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Granny Annexe near Coseley | £29 | £227 |
| Granny Annexe near Bilston | £29 | £228 |
| Granny Annexe near Tipton | £29 | £228 |
| Granny Annexe near Sedgley | £28 | £224 |
| Granny Annexe near Dudley | £29 | £227 |
| Granny Annexe near Darlaston | £29 | £229 |
| Granny Annexe near Willenhall | £29 | £228 |
| Granny Annexe near Wednesbury | £29 | £230 |
| Granny Annexe near Sandwell | £29 | £231 |
| Granny Annexe near Wolverhampton | £28 | £222 |
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 - £17,349

Two storey extension - £87,773

Build a timber frame extension - £25,849

Build a swimming pool - £80,849

Single storey extension - £51,976

Side return extension - £39,799

Install an RSJ - £2,049

Outbuilding - £9,849

Build a Mansard loft conversion - £51,849

Loft conversion - £32,333

Build a kitchen extension - £41,849

Hip to gable loft conversion - £41,849

Granny annexe - £86,849

Garden office - £9,849

Convert a Garage - £15,849

Garage - £18,349

Build a flat roof extension - £21,849

Build a dormer loft conversion - £41,849

Concrete foundations - £6,099

Convert a bungalow loft - £28,849

Convert a basement - £35,799