We send your job to ALL CF23 extension builders
Available extension builders in CF23 reply
Select your affordable CF23 extension builder
The Philog Paving Services is an established extension buildering business in CF23. We come highly recommended and provide competitive quotes for y...
Experienced extension builder ready to quote for your work. JA Building Maintenance is the best extension builder in CF23. No obligation free quote...
Experienced extension builder ready to quote for your work. TOR BUILD is the best extension builder in CF23. No obligation free quotes and many hap...
Relax... you have found a reliable extension builder in CF23. Charles Marshall Contracting Ltd is a friendly and reliable company based in CF23 who...
Paul Knox
Trusted and professional extension builder in CF23. Experienced in all extension buildering work and keeping within budget and on quote. PK CONSTRU...
MCp Home Improvements is an established and experienced local extension builder in CF23. Please contact us for a free, no obligation quote and comp...
River Gods is a respected name in bathroom and kitchen design throughout South Wales. Known for quality, artisan-ship and exceptional value for mon...
Need to find an Extension Builder near you for all your extension buildering work?
ABS Allied Trades provides a local, trusted extension bu...
Relax... you have found a reliable extension builder in CF23. MGKB Ltd is a friendly and reliable company based in CF23 who consider no job as too ...
Trusted and professional extension builder in CF23. Experienced in all extension buildering work and keeping within budget and on quote. TLC Buildi...

Building a granny annexe ranges from £86,040 (PK CONSTRUCTION based in CF14) to £86,896 (River Gods Limited based in CF14), 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 CF23 by posting a job with HaMuch. We will send it to extension builders in CF23 who will be happy to help you.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Granny Annexe near Cardiff | £34 | £223 |
| Granny Annexe near Caerphilly | £33 | £208 |
| Granny Annexe near Penarth | £35 | £223 |
| Granny Annexe near Risca | £32 | £218 |
| Granny Annexe near Church Village | £34 | £214 |
| Granny Annexe near Newport | £41 | £233 |
| Granny Annexe near Pontypridd | £33 | £211 |
| Granny Annexe near Barry | £33 | £218 |
| Granny Annexe near Cwmbran | £43 | £219 |
| Granny Annexe near Rhondda | £31 | £206 |
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 - £17,161

Two storey extension - £87,491

Build a timber frame extension - £25,661

Build a swimming pool - £80,661

Single storey extension - £48,216

Side return extension - £37,684

Install an RSJ - £1,861

Outbuilding - £9,661

Build a Mansard loft conversion - £51,661

Loft conversion - £30,570

Build a kitchen extension - £41,661

Hip to gable loft conversion - £41,661

Granny annexe - £86,661

Garden office - £9,661

Convert a Garage - £15,661

Garage - £18,161

Build a flat roof extension - £21,661

Build a dormer loft conversion - £41,661

Concrete foundations - £5,911

Convert a bungalow loft - £28,661

Convert a basement - £33,684