Infinity Property Improvements Limited are here to help customers who need an Extension Builder in WS7. We offer a competitive rate to complete all...
From £86,576
Experienced extension builder ready to quote for your work. LONGDON CONSTRUCTION LTD is the best extension builder in WS7. No obligation free quote...

Building a granny annexe ranges from £86,576 (LONGDON CONSTRUCTION LTD based in WS15) to £86,848 (Infinity Property Improvements Limited based in WS12), 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 WS7 by posting a job with HaMuch. We will send it to extension builders in WS7 who will be happy to help you.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Granny Annexe near Burntwood | £29 | £229 |
| Granny Annexe near Brownhills | £28 | £225 |
| Granny Annexe near Lichfield | £29 | £227 |
| Granny Annexe near Cannock | £28 | £227 |
| Granny Annexe near Rugeley | £30 | £230 |
| Granny Annexe near Bloxwich | £28 | £225 |
| Granny Annexe near Walsall | £29 | £226 |
| Granny Annexe near Willenhall | £29 | £225 |
| Granny Annexe near Darlaston | £29 | £226 |
| Granny Annexe near Wednesbury | £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 - £17,212

Two storey extension - £87,568

Build a timber frame extension - £25,712

Build a swimming pool - £80,712

Single storey extension - £49,240

Side return extension - £38,260

Install an RSJ - £1,912

Outbuilding - £9,712

Build a Mansard loft conversion - £51,712

Loft conversion - £31,050

Build a kitchen extension - £41,712

Hip to gable loft conversion - £41,712

Granny annexe - £86,712

Garden office - £9,712

Convert a Garage - £15,712

Garage - £18,212

Build a flat roof extension - £21,712

Build a dormer loft conversion - £41,712

Concrete foundations - £5,962

Convert a bungalow loft - £28,712

Convert a basement - £34,260