From £9,632
Taggart Homes - The Designer Builder are here to help customers who need an Extension Builder in Cityside. We offer a competitive rate to complete ...
From £9,784
Relax... you have found a reliable extension builder in Cityside. Tyrone Turbos is a friendly and reliable company based in Cityside who consider n...
From £9,696
Relax... you have found a reliable extension builder in Cityside. JAMSE CONSTRUCTION LTD is a friendly and reliable company based in Cityside who c...
From £9,520
Luxury Garden Studios is an established and experienced local extension builder in Cityside. Please contact us for a free, no obligation quote and ...

Garden offices range from the cheapest of £9,520 (Luxury Garden Studios based in BT47) to the dearest of £9,784 (Tyrone Turbos based in BT82), 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 Cityside by posting a job with HaMuch. We'll send it to extension builders in Cityside.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Garden Office near Strathfoyle | £20 | £166 |
| Garden Office near Newbuildings | £20 | £166 |
| Garden Office near Londonderry | £20 | £166 |
| Garden Office near Strabane | £21 | £173 |
| Garden Office near Dungiven | £21 | £179 |
| Garden Office near Coleraine | £21 | £181 |
| Garden Office near Magherafelt | £25 | £200 |
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 - £17,158

Two storey extension - £87,487

Build a timber frame extension - £25,658

Build a swimming pool - £80,658

Single storey extension - £48,160

Side return extension - £37,653

Install an RSJ - £1,858

Outbuilding - £9,658

Build a Mansard loft conversion - £51,658

Loft conversion - £30,544

Build a kitchen extension - £41,658

Hip to gable loft conversion - £41,658

Granny annexe - £86,658

Garden office - £9,658

Convert a Garage - £15,658

Garage - £18,158

Build a flat roof extension - £21,658

Build a dormer loft conversion - £41,658

Concrete foundations - £5,908

Convert a bungalow loft - £28,658

Convert a basement - £33,653