From £9,896
Need an Extension Builder in TR11? Cloverfield Construction Ltd has been helping local clients (20 mile radius) with their extension buildering job...
From £9,752
Jackson Developments provides an affordable, quality service for customers across Cornwall.We undertake all aspects of building work and can manage...
From £9,792
Need to find an Extension Builder near you for all your extension buildering work?
Samuel Winn Design & Build provides a local, trusted ext...

Garden offices range from the cheapest of £9,752 (Jackson Developments based in TR10) to the dearest of £9,896 (Cloverfield Construction Ltd based in TR11), 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 TR11 by posting a job with HaMuch. We'll send it to extension builders in TR11.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Garden Office near Falmouth | £33 | £220 |
| Garden Office near Truro | £31 | £206 |
| Garden Office near Camborne | £28 | £196 |
| Garden Office near Newquay | £32 | £230 |
| Garden Office near St Ives, Cornwall | £27 | £188 |
| Garden Office near St Austell | £38 | £245 |
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 - £17,313

Two storey extension - £87,720

Build a timber frame extension - £25,813

Build a swimming pool - £80,813

Single storey extension - £51,267

Side return extension - £39,400

Install an RSJ - £2,013

Outbuilding - £9,813

Build a Mansard loft conversion - £51,813

Loft conversion - £32,000

Build a kitchen extension - £41,813

Hip to gable loft conversion - £41,813

Granny annexe - £86,813

Garden office - £9,813

Convert a Garage - £15,813

Garage - £18,313

Build a flat roof extension - £21,813

Build a dormer loft conversion - £41,813

Concrete foundations - £6,063

Convert a bungalow loft - £28,813

Convert a basement - £35,400