Experienced extension builder ready to quote for your work. J&J Building Solutions is the best extension builder in Balham. No obligation free quot...
Vasi J
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All aspects of Plumbing, Heating and Drains....
..."I am very pleased with the work carried out. All very clear and transparent." - ROMFORD,reviewed 10/01/18, KELLY
PW Construction & Renovation Ltd is a trusted extension builder serving customers in Balham and the surrounding area. Contact us to today to get a ...
Robert Buci
Buci builders ltd is a trusted extension builder serving customers in Balham and the surrounding area. Contact us to today to get a competitive quo...
Experienced extension builder ready to quote for your work. D & G Building & Decorating is the best extension builder in Balham. No obligation free...
London Construction is an established and experienced local extension builder in Balham. Please contact us for a free, no obligation quote and comp...
Experienced extension builder ready to quote for your work. Cornerstones Construction is the best extension builder in Balham. No obligation free q...
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
Renaissance Timothy Brewer Ltd is an established extension buildering business in Balham. We come highly recommended and provide competitive quotes...
Trusted and professional extension builder in Balham. Experienced in all extension buildering work and keeping within budget and on quote. Sonik Bu...

Building a granny annexe ranges from £86,984 (RCB Group Design & Build based in SE21) to £88,024 (Buci builders ltd based in SE27), but these are just estimates that can help give you an idea of who will be better value in your area.
The best thing to do is to get quotes to build a granny annexe in Balham by posting a job with HaMuch. We will send it to extension builders in Balham who will be happy to help you.
| Borough in London |
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| Granny Annexe in Balham |
| Granny Annexe in Clapham |
| Granny Annexe in Tooting |
| Granny Annexe in Brixton |
| Granny Annexe in Battersea |
| Granny Annexe in Earlsfield |
| Granny Annexe in Streatham |
| Granny Annexe in Herne Hill |
| Granny Annexe in Nine Elms |
| Granny Annexe in Stockwell |
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 - £17,766

Two storey extension - £88,400

Build a timber frame extension - £26,266

Build a swimming pool - £81,266

Single storey extension - £60,328

Side return extension - £44,497

Install an RSJ - £2,466

Outbuilding - £10,266

Build a Mansard loft conversion - £52,266

Loft conversion - £36,248

Build a kitchen extension - £42,266

Hip to gable loft conversion - £42,266

Granny annexe - £87,266

Garden office - £10,266

Convert a Garage - £16,266

Garage - £18,766

Build a flat roof extension - £22,266

Build a dormer loft conversion - £42,266

Concrete foundations - £6,516

Convert a bungalow loft - £29,266

Convert a basement - £40,497