From £10,160
Venta Construction is an established and experienced local extension builder in Liverpool Street. Please contact us for a free, no obligation quote...
From £10,128
Fornia Build Ltd is an established and experienced local extension builder in Liverpool Street. Please contact us for a free, no obligation quote a...
From £10,528
Bring your vision to life with Fornia build. Our main aim is to design and build exceptional residential properties in prime locations, to the high...
From £10,040
TOP CONSTRUCTION is an established extension buildering business in Liverpool Street. We come highly recommended and provide competitive quotes for...
From £10,272
Need an Extension Builder in Liverpool Street? Aylaa Exclusive has been helping local clients (5 mile radius) with their extension buildering jobs ...
From £9,928
Shine Your Home is an established extension buildering business in Liverpool Street. We come highly recommended and provide competitive quotes for ...
From £10,256
Regalia Ltd are a company that regards itself on the excellent craftsmanship and attention to detail that occurs during every process in our projec...
From £10,192
NIECEIC / NAAPIT GASSAFE WATER REGULATIONS We offer services towards completion of high end construction projects to dis...
From £10,416
Glass Spaces, Extensions and Rooms is an established and experienced local extension builder in Liverpool Street. Please contact us for a free, no ...
From £9,912
Kindred Elite is an established extension buildering business in Liverpool Street. We come highly recommended and provide competitive quotes for yo...

Garden offices range from the cheapest of £9,912 (Kindred Elite based in EC2A) to the dearest of £10,528 (Fornia Build Ltd based in EC1V), 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 Liverpool Street by posting a job with HaMuch. We'll send it to extension builders in Liverpool Street.
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 - £17,683

Two storey extension - £88,275

Build a timber frame extension - £26,183

Build a swimming pool - £81,183

Single storey extension - £58,664

Side return extension - £43,561

Install an RSJ - £2,383

Outbuilding - £10,183

Build a Mansard loft conversion - £52,183

Loft conversion - £35,468

Build a kitchen extension - £42,183

Hip to gable loft conversion - £42,183

Granny annexe - £87,183

Garden office - £10,183

Convert a Garage - £16,183

Garage - £18,683

Build a flat roof extension - £22,183

Build a dormer loft conversion - £42,183

Concrete foundations - £6,433

Convert a bungalow loft - £29,183

Convert a basement - £39,561