Barlam Drylining Ltd are here to help customers who need an Extension Builder in Ferndale. We offer a competitive rate to complete all your extensi...
P ALLEN BUILDERS is an established and experienced local extension builder in Ferndale. Please contact us for a free, no obligation quote and compe...
We are a small family run business, established over 35 years ago, specialising in Hard Landscaping (Patios) and Block Paving.We a...
G Wager Building Maintenance is a trusted extension builder serving customers in Ferndale and the surrounding area. Contact us to today to get a co...
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
From £86,496
Trusted and professional extension builder in Ferndale. Experienced in all extension buildering work and keeping within budget and on quote. RJ CON...
From £86,528
Need an Extension Builder in Ferndale? A POWELL CONSTRUCTION LTD has been helping local clients (20 mile radius) with their extension buildering jo...
From £86,576
Ferndale, CF43
L E JONES BUILDER is an established extension buildering business in Ferndale. We come highly recommended and provide competitive quotes for your w...
From £86,808
Dare Fitness is an established extension buildering business in Ferndale. We come highly recommended and provide competitive quotes for your work.<...
From £86,616
Excel Home Design Ltd is an established extension buildering business in Ferndale. We come highly recommended and provide competitive quotes for yo...

Building a granny annexe ranges from £86,496 (RJ CONSTRUCTION based in CF40) 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 Ferndale by posting a job with HaMuch. We will send it to extension builders in Ferndale who will be happy to help you.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Granny Annexe near Rhondda, Cynon, Taff | £31 | £209 |
| Granny Annexe near Rhondda | £31 | £206 |
| Granny Annexe near Aberdare | £32 | £212 |
| Granny Annexe near Pontypridd | £33 | £211 |
| Granny Annexe near Merthyr Tydfil | £33 | £220 |
| Granny Annexe near Church Village | £34 | £214 |
| Granny Annexe near Maesteg | £38 | £283 |
| Granny Annexe near Caerphilly | £33 | £208 |
| Granny Annexe near Tredegar | £30 | £217 |
| Granny Annexe near Bridgend | £32 | £200 |
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 - £17,169

Two storey extension - £87,503

Build a timber frame extension - £25,669

Build a swimming pool - £80,669

Single storey extension - £48,376

Side return extension - £37,774

Install an RSJ - £1,869

Outbuilding - £9,669

Build a Mansard loft conversion - £51,669

Loft conversion - £30,645

Build a kitchen extension - £41,669

Hip to gable loft conversion - £41,669

Granny annexe - £86,669

Garden office - £9,669

Convert a Garage - £15,669

Garage - £18,169

Build a flat roof extension - £21,669

Build a dormer loft conversion - £41,669

Concrete foundations - £5,919

Convert a bungalow loft - £28,669

Convert a basement - £33,774