DEREK REES BUILDING MAINTENANC is an established extension buildering business in LD3. We come highly recommended and provide competitive quotes fo...
From £9,744
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 £9,640 (DEREK REES BUILDING MAINTENANC based in LD3) to the dearest of £9,744 (SEER CONSTRUCTION LTD based in LD3), 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 LD3 by posting a job with HaMuch. We'll send it to extension builders in LD3.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Garden Office near Tredegar | £30 | £217 |
| Garden Office near Ebbw Vale | £30 | £217 |
| Garden Office near Merthyr Tydfil | £33 | £220 |
| Garden Office near Aberdare | £32 | £212 |
| Garden Office near Rhondda, Cynon, Taff | £31 | £209 |
| Garden Office near Pontypool | £30 | £210 |
| Garden Office near Rhondda | £31 | £206 |
| Garden Office near Neath Port Talbot | £31 | £224 |
| Garden Office near Pontypridd | £33 | £211 |
| Garden Office near Cwmbran | £43 | £219 |
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 - £17,192

Two storey extension - £87,538

Build a timber frame extension - £25,692

Build a swimming pool - £80,692

Single storey extension - £48,840

Side return extension - £38,035

Install an RSJ - £1,892

Outbuilding - £9,692

Build a Mansard loft conversion - £51,692

Loft conversion - £30,863

Build a kitchen extension - £41,692

Hip to gable loft conversion - £41,692

Granny annexe - £86,692

Garden office - £9,692

Convert a Garage - £15,692

Garage - £18,192

Build a flat roof extension - £21,692

Build a dormer loft conversion - £41,692

Concrete foundations - £5,942

Convert a bungalow loft - £28,692

Convert a basement - £34,035