From £86,800
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
From £87,152
Prestige Build Services LTD is a trusted extension builder serving customers in Carterton and the surrounding area. Contact us to today to get a co...
From £87,200
The business can carry out all aspects of building work:- single or double storey extensions- kitchen and bathroom installations- p...
From £87,192
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
From £86,984
Lambert Home Builds is a trusted extension builder serving customers in Carterton and the surrounding area. Contact us to today to get a competitiv...
From £87,216
Experienced extension builder ready to quote for your work. DRC Construction is the best extension builder in Carterton. No obligation free quotes ...
From £87,216
Need to find an Extension Builder near you for all your extension buildering work?
BA Knott Oxford Ltd provides a local, trusted extension ...
From £87,096
MJ solutions is an established and experienced local extension builder in Carterton. Please contact us for a free, no obligation quote and competi...
From £87,128
Relax... you have found a reliable extension builder in Carterton. CHF CONSTRUCTION is a friendly and reliable company based in Carterton who consi...
From £86,480
MR HOWELL are here to help customers who need an Extension Builder in Carterton. We offer a competitive rate to complete all your extension builder...

Building a granny annexe ranges from £86,480 (MR HOWELL based in SN3) to £87,216 (DRC Construction based in OX14), 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 Carterton by posting a job with HaMuch. We will send it to extension builders in Carterton who will be happy to help you.
"Granny annexe" - CARTERTON, job posted 01/01/70
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Granny Annexe near Witney | £32 | £244 |
| Granny Annexe near Vale of White Horse | £36 | £271 |
| Granny Annexe near Stratton St Margaret | £37 | £238 |
| Granny Annexe near Oxford | £37 | £261 |
| Granny Annexe near Abingdon-on-Thames | £35 | £258 |
| Granny Annexe near Thamesdown | £38 | £239 |
| Granny Annexe near Swindon | £38 | £238 |
| Granny Annexe near Didcot | £36 | £266 |
| Granny Annexe near Cherwell | £35 | £249 |
| Granny Annexe near Bicester | £35 | £249 |
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 - £17,546

Two storey extension - £88,070

Build a timber frame extension - £26,046

Build a swimming pool - £81,046

Single storey extension - £55,928

Side return extension - £42,022

Install an RSJ - £2,246

Outbuilding - £10,046

Build a Mansard loft conversion - £52,046

Loft conversion - £34,185

Build a kitchen extension - £42,046

Hip to gable loft conversion - £42,046

Granny annexe - £87,046

Garden office - £10,046

Convert a Garage - £16,046

Garage - £18,546

Build a flat roof extension - £22,046

Build a dormer loft conversion - £42,046

Concrete foundations - £6,296

Convert a bungalow loft - £29,046

Convert a basement - £38,022