From £10,264
Oxfordshire, OX1
MG Property Maintenance & Services is a trusted extension builder serving customers in Oxfordshire and the surrounding area. Contact us to today to...
From £9,952
Oxfordshire, OX1
Trusted and professional extension builder in Oxfordshire. Experienced in all extension buildering work and keeping within budget and on quote. Des...
From £10,032
CROWN CONSTRUCTION is an established extension buildering business in Oxfordshire. We come highly recommended and provide competitive quotes for yo...
From £10,344
Oxfordshire, OX2
Trusted and professional extension builder in Oxfordshire. Experienced in all extension buildering work and keeping within budget and on quote. Cra...
From £10,224
TNT CONSTRUCTION are here to help customers who need an Extension Builder in Oxfordshire. We offer a competitive rate to complete all your extensio...
From £8,016
Trusted and professional extension builder in Oxfordshire. Experienced in all extension buildering work and keeping within budget and on quote. Bea...
From £9,856
Oxfordshire, OX3
Trusted and professional extension builder in Oxfordshire. Experienced in all extension buildering work and keeping within budget and on quote. Spa...
From £10,512
Michael E Phillips is an established extension buildering business in Oxfordshire. We come highly recommended and provide competitive quotes for yo...
From £10,192
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
From £9,880
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...

Garden offices range from the cheapest of £8,016 (Beaumont Design & Build Ltd based in OX4) to the dearest of £10,512 (Michael E Phillips based in OX2), but these are only estimates.
The best way to compare costs is to get actual quotes.
Get rates and quotes to build a garden office in Oxfordshire by posting a job with HaMuch. We'll send it to extension builders in Oxfordshire.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Garden Office near Oxford | £37 | £261 |
| Garden Office near Abingdon-on-Thames | £35 | £258 |
| Garden Office near Didcot | £36 | £266 |
| Garden Office near Witney | £32 | £244 |
| Garden Office near Cherwell | £35 | £249 |
| Garden Office near South Oxfordshire | £36 | £253 |
| Garden Office near Bicester | £35 | £249 |
| Garden Office near Vale of White Horse | £36 | £271 |
| Garden Office near Aylesbury Vale | £36 | £246 |
| Garden Office near Aylesbury | £42 | £270 |
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 - £17,427

Two storey extension - £87,891

Build a timber frame extension - £25,927

Build a swimming pool - £80,927

Single storey extension - £53,544

Side return extension - £40,681

Install an RSJ - £2,127

Outbuilding - £9,927

Build a Mansard loft conversion - £51,927

Loft conversion - £33,068

Build a kitchen extension - £41,927

Hip to gable loft conversion - £41,927

Granny annexe - £86,927

Garden office - £9,927

Convert a Garage - £15,927

Garage - £18,427

Build a flat roof extension - £21,927

Build a dormer loft conversion - £41,927

Concrete foundations - £6,177

Convert a bungalow loft - £28,927

Convert a basement - £36,681