From £86,856
AJC PROJECT SERVICES Ltd is an established and experienced local extension builder in South Oxfordshire. Please contact us for a free, no obligatio...
From £86,880
Relax... you have found a reliable extension builder in South Oxfordshire. JOHN BURDER CONSTRUCTION LIMIT is a friendly and reliable company based ...
From £87,168
Need to find an Extension Builder near you for all your extension buildering work?
Inside Out Oxford, Bespoke Garden Rooms provides a loca...
From £87,392
Need to find an Extension Builder near you for all your extension buildering work?
Steel Brook Construction provides a local, trusted exten...
From £87,160
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
From £86,880
Trusted and professional extension builder in South Oxfordshire. Experienced in all extension buildering work and keeping within budget and on quot...
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 £87,096
Countryside Oak is an established and experienced local extension builder in South Oxfordshire. Please contact us for a free, no obligation quote a...
From £86,976
D.Bradbury Property Services are here to help customers who need an Extension Builder in South Oxfordshire. We offer a competitive rate to complete...
From £86,904
Relax... you have found a reliable extension builder in South Oxfordshire. Nicola Scannell Design and Property is a friendly and reliable company b...

Building a granny annexe ranges from £86,856 (AJC PROJECT SERVICES Ltd based in OX10) to £87,392 (Steel Brook Construction based in OX10), 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 South Oxfordshire by posting a job with HaMuch. We will send it to extension builders in South Oxfordshire who will be happy to help you.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Granny Annexe near South Oxfordshire | £36 | £253 |
| Granny Annexe near Didcot | £36 | £266 |
| Granny Annexe near Abingdon-on-Thames | £35 | £258 |
| Granny Annexe near Oxford | £37 | £261 |
| Granny Annexe near Caversham | £38 | £265 |
| Granny Annexe near Wycombe | £39 | £271 |
| Granny Annexe near Reading | £42 | £266 |
| Granny Annexe near High Wycombe | £39 | £272 |
| Granny Annexe near Woodley | £42 | £266 |
| Granny Annexe near Hazlemere | £40 | £272 |
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 - £17,550

Two storey extension - £88,076

Build a timber frame extension - £26,050

Build a swimming pool - £81,050

Single storey extension - £56,008

Side return extension - £42,067

Install an RSJ - £2,250

Outbuilding - £10,050

Build a Mansard loft conversion - £52,050

Loft conversion - £34,223

Build a kitchen extension - £42,050

Hip to gable loft conversion - £42,050

Granny annexe - £87,050

Garden office - £10,050

Convert a Garage - £16,050

Garage - £18,550

Build a flat roof extension - £22,050

Build a dormer loft conversion - £42,050

Concrete foundations - £6,300

Convert a bungalow loft - £29,050

Convert a basement - £38,067