STEVE MULVANEY BUILDING are here to help customers who need an Extension Builder in SR7. We offer a competitive rate to complete all your extension...
From £10,104
A Kendal Builders (N/E) Limited is an established and experienced local extension builder in SR7. Please contact us for a free, no obligation quote...

Garden offices range from the cheapest of £9,912 (STEVE MULVANEY BUILDING based in SR2) to the dearest of £10,104 (A Kendal Builders (N/E) Limited based in SR3), 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 SR7 by posting a job with HaMuch. We'll send it to extension builders in SR7.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Garden Office near Seaham | £35 | £235 |
| Garden Office near Peterlee | £36 | £230 |
| Garden Office near Sunderland | £33 | £251 |
| Garden Office near Washington | £33 | £254 |
| Garden Office near Durham | £47 | £267 |
| Garden Office near Chester-le-Street | £35 | £242 |
| Garden Office near South Tyneside | £34 | £261 |
| Garden Office near Jarrow | £34 | £262 |
| Garden Office near Hartlepool | £40 | £236 |
| Garden Office near South Shields | £36 | £257 |
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 - £17,508

Two storey extension - £88,012

Build a timber frame extension - £26,008

Build a swimming pool - £81,008

Single storey extension - £55,160

Side return extension - £41,590

Install an RSJ - £2,208

Outbuilding - £10,008

Build a Mansard loft conversion - £52,008

Loft conversion - £33,825

Build a kitchen extension - £42,008

Hip to gable loft conversion - £42,008

Granny annexe - £87,008

Garden office - £10,008

Convert a Garage - £16,008

Garage - £18,508

Build a flat roof extension - £22,008

Build a dormer loft conversion - £42,008

Concrete foundations - £6,258

Convert a bungalow loft - £29,008

Convert a basement - £37,590