From £86,864
Need an Extension Builder in CF35? SP Property Maintenance has been helping local clients (20 mile radius) with their extension buildering jobs for...
From £86,800
Scorpion Windows LTD is a trusted extension builder serving customers in CF35 and the surrounding area. Contact us to today to get a competitive qu...
From £86,832
Experienced extension builder ready to quote for your work. WH Builders is the best extension builder in CF35. No obligation free quotes and many h...
From £86,784
S J S Services (Wales) Ltd is a trusted extension builder serving customers in CF35 and the surrounding area. Contact us to today to get a competit...
From £86,792
We are a small family run business, established over 35 years ago, specialising in Hard Landscaping (Patios) and Block Paving.We a...
From £86,736
Relax... you have found a reliable extension builder in CF35. DEAN THOMAS BUILDING is a friendly and reliable company based in CF35 who consider no...
From £86,720
Relax... you have found a reliable extension builder in CF35. WESTGATE BUILDING SERVICES LTD is a friendly and reliable company based in CF35 who c...
From £86,616
Excel Home Design Ltd is an established extension buildering business in CF35. We come highly recommended and provide competitive quotes for your w...
From £86,504
Need to find an Extension Builder near you for all your extension buildering work?
Price Builders provides a local, trusted extension build...
From £86,576
Relax... you have found a reliable extension builder in CF35. Cwtch Property Developments is a friendly and reliable company based in CF35 who cons...

Building a granny annexe ranges from £86,504 (Price Builders based in CF71) to £86,864 (SP Property Maintenance based in CF35), 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 CF35 by posting a job with HaMuch. We will send it to extension builders in CF35 who will be happy to help you.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Granny Annexe near Bridgend | £27 | £170 |
| Granny Annexe near Pyle | £30 | £234 |
| Granny Annexe near Rhondda | £27 | £183 |
| Granny Annexe near Vale of Glamorgan | £26 | £191 |
| Granny Annexe near Porthcawl | £29 | £228 |
| Granny Annexe near Maesteg | £32 | £239 |
| Granny Annexe near Church Village | £30 | £188 |
| Granny Annexe near Rhondda, Cynon, Taff | £27 | £183 |
| Granny Annexe near Pontypridd | £29 | £184 |
| Granny Annexe near Barry | £29 | £189 |
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