Relax... you have found a reliable extension builder in OX12. CHF CONSTRUCTION is a friendly and reliable company based in OX12 who consider no job...
From £10,200
WJW Home Improvements - Friendly and professional builders. We specialize in extensions, loft conversions, and big renovation projects. Our motto i...
From £10,224
SH Carpentry and Construction Ltd is a professional, reliable and friendly carpentry, joinery and general construction company working in and aroun...

Garden offices range from the cheapest of £10,128 (CHF CONSTRUCTION based in OX12) to the dearest of £10,224 (SH Carpentry & Construction Limited based in OX12), 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 OX12 by posting a job with HaMuch. We'll send it to extension builders in OX12.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Garden Office near Vale of White Horse | £36 | £271 |
| Garden Office near Didcot | £36 | £266 |
| Garden Office near Abingdon-on-Thames | £35 | £258 |
| Garden Office near Oxford | £37 | £261 |
| Garden Office near Witney | £32 | £244 |
| Garden Office near Newbury | £37 | £262 |
| Garden Office near Stratton St Margaret | £32 | £238 |
| Garden Office near South Oxfordshire | £36 | £253 |
| Garden Office near Swindon | £31 | £238 |
| Garden Office near Thatcham | £38 | £266 |
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 - £17,684

Two storey extension - £88,276

Build a timber frame extension - £26,184

Build a swimming pool - £81,184

Single storey extension - £58,680

Side return extension - £43,570

Install an RSJ - £2,384

Outbuilding - £10,184

Build a Mansard loft conversion - £52,184

Loft conversion - £35,475

Build a kitchen extension - £42,184

Hip to gable loft conversion - £42,184

Granny annexe - £87,184

Garden office - £10,184

Convert a Garage - £16,184

Garage - £18,684

Build a flat roof extension - £22,184

Build a dormer loft conversion - £42,184

Concrete foundations - £6,434

Convert a bungalow loft - £29,184

Convert a basement - £39,570