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Need an Extension Builder in Greenwich? Exquisite Design & Build Ltd has been helping local clients (5 mile radius) with their extension buildering...
Trusted and professional extension builder in Greenwich. Experienced in all extension buildering work and keeping within budget and on quote. AM Bu...
Trusted and professional extension builder in Greenwich. Experienced in all extension buildering work and keeping within budget and on quote. Charl...
Jay Christenson
Experienced extension builder ready to quote for your work. Jmc buildets is the best extension builder in Greenwich. No obligation free quotes and ...
RLD Contractors Ltd is an established and experienced local extension builder in Greenwich. Please contact us for a free, no obligation quote and c...
Rapid Bee Ltd is an established extension buildering business in Greenwich. We come highly recommended and provide competitive quotes for your work...
Trusted and professional extension builder in Greenwich. Experienced in all extension buildering work and keeping within budget and on quote. ROOSE...
Andy Tunmer Building Services is an established and experienced local extension builder in Greenwich. Please contact us for a free, no obligation q...
Andy Hart
Need to find an Extension Builder near you for all your extension buildering work?
Hartigans Construction provides a local, trusted extensi...
Relax... you have found a reliable extension builder in Greenwich. S G Painting Contractor Ltd is a friendly and reliable company based in Greenwic...

Outbuilding costs in Greenwich range from the cheapest of £9,616 (Jmc buildets based in SE9) to the dearest of £10,376 (Exquisite Design & Build Ltd based in SE16), but these are just estimates.
Comparing extension builders estimates for building an outbuilding gives you an idea of who will be better value, but the best way to compare costs is to get actual quotes.
Get rates and quotes to build an outbuilding in Greenwich by posting a job with HaMuch and we will send it to extension builders.
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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 - £17,597

Two storey extension - £88,145

Build a timber frame extension - £26,097

Build a swimming pool - £81,097

Single storey extension - £56,936

Side return extension - £42,589

Install an RSJ - £2,297

Outbuilding - £10,097

Build a Mansard loft conversion - £52,097

Loft conversion - £34,658

Build a kitchen extension - £42,097

Hip to gable loft conversion - £42,097

Granny annexe - £87,097

Garden office - £10,097

Convert a Garage - £16,097

Garage - £18,597

Build a flat roof extension - £22,097

Build a dormer loft conversion - £42,097

Concrete foundations - £6,347

Convert a bungalow loft - £29,097

Convert a basement - £38,589