From £85,312
Here at London Design and Build, our team of architects, interior designers, structural engineers and contractors, offer a bespoke, turn-key servic...
From £87,988
Relax... you have found a reliable extension builder in Victoria Station. London Projects Ltd is a friendly and reliable company based in Victoria ...
From £87,964
A to Z Builders Ltd are here to help customers who need an Extension Builder in Victoria Station. We offer a competitive rate to complete all your ...
From £88,384
F & F Building Services is an established extension buildering business in Victoria Station. We come highly recommended and provide competitive quo...
From £88,576
Experienced extension builder ready to quote for your work. Future Homes Design and Build is the best extension builder in Victoria Station. No obl...
From £88,504
Luxury Movement is an established extension buildering business in Victoria Station. We come highly recommended and provide competitive quotes for ...
From £88,528
Experienced extension builder ready to quote for your work. Mayfair Design is the best extension builder in Victoria Station. No obligation free qu...
From £88,156
Trusted and professional extension builder in Victoria Station. Experienced in all extension buildering work and keeping within budget and on quote...
From £88,480
Cliden Construction (London) is a trusted extension builder serving customers in Victoria Station and the surrounding area. Contact us to today to ...
From £88,036
At Alt Construction we provide a complete and professional turnkey construction service for internal alterations, extensions, including detailed de...

Costs range from £85,312 (London Design And Build based in SW1A) to £88,576 (Future Homes Design and Build based in W1K), but these are just estimates. The best way to compare costs is to get real quotes from real 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 - £17,495

Two storey extension - £87,993

Build a timber frame extension - £25,995

Build a swimming pool - £80,995

Single storey extension - £54,904

Side return extension - £41,446

Install an RSJ - £2,195

Outbuilding - £9,995

Build a Mansard loft conversion - £51,995

Loft conversion - £33,705

Build a kitchen extension - £41,995

Hip to gable loft conversion - £41,995

Granny annexe - £86,995

Garden office - £9,995

Convert a Garage - £15,995

Garage - £18,495

Build a flat roof extension - £21,995

Build a dormer loft conversion - £41,995

Concrete foundations - £6,245

Convert a bungalow loft - £28,995

Convert a basement - £37,446