From £86,880
Relax... you have found a reliable extension builder in NP44. A M I Construction is a friendly and reliable company based in NP44 who consider no j...
From £86,896
Barlam Drylining Ltd are here to help customers who need an Extension Builder in NP44. We offer a competitive rate to complete all your extension b...
From £86,872
Need an Extension Builder in NP44? P.D.Builders has been helping local clients (20 mile radius) with their extension buildering jobs for many years...
From £86,200
Very reliable honest and hard working guarantee all work clean and tidy first class work
From £86,728
Neil Causon & Son is an established and experienced local extension builder in NP44. Please contact us for a free, no obligation quote and competit...
From £86,824
Need an Extension Builder in NP44? Mucha Construcion has been helping local clients (20 mile radius) with their extension buildering jobs for many ...
From £86,616
Experienced extension builder ready to quote for your work. JA Building Maintenance is the best extension builder in NP44. No obligation free quote...
From £86,784
Experienced extension builder ready to quote for your work. TOR BUILD is the best extension builder in NP44. No obligation free quotes and many hap...
From £86,792
T Porter Buiding is an established and experienced local extension builder in NP44. Please contact us for a free, no obligation quote and competiti...
From £86,632
Relax... you have found a reliable extension builder in NP44. Charles Marshall Contracting Ltd is a friendly and reliable company based in NP44 who...

Building a granny annexe ranges from £86,200 (A.Gaddarn Builders based in NP11) to £86,896 (Barlam Drylining Ltd based in CF45), 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 NP44 by posting a job with HaMuch. We will send it to extension builders in NP44 who will be happy to help you.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Granny Annexe near Cwmbran | £43 | £219 |
| Granny Annexe near Risca | £32 | £218 |
| Granny Annexe near Newport | £41 | £233 |
| Granny Annexe near Pontypool | £30 | £210 |
| Granny Annexe near Caerphilly | £33 | £208 |
| Granny Annexe near Ebbw Vale | £30 | £217 |
| Granny Annexe near Tredegar | £30 | £217 |
| Granny Annexe near Cardiff | £34 | £219 |
| Granny Annexe near Pontypridd | £33 | £211 |
| Granny Annexe near Church Village | £34 | £214 |
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 - £17,222

Two storey extension - £87,584

Build a timber frame extension - £25,722

Build a swimming pool - £80,722

Single storey extension - £49,448

Side return extension - £38,377

Install an RSJ - £1,922

Outbuilding - £9,722

Build a Mansard loft conversion - £51,722

Loft conversion - £31,148

Build a kitchen extension - £41,722

Hip to gable loft conversion - £41,722

Granny annexe - £86,722

Garden office - £9,722

Convert a Garage - £15,722

Garage - £18,222

Build a flat roof extension - £21,722

Build a dormer loft conversion - £41,722

Concrete foundations - £5,972

Convert a bungalow loft - £28,722

Convert a basement - £34,377