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Gani Bush
Gb construction are here to help customers who need an Extension Builder in Purley. We offer a competitive rate to complete all your extension bui...
Relax... you have found a reliable extension builder in Purley. D & R Roofing & Loft Conversions, Building & Design is a friendly and reliable comp...
Experienced extension builder ready to quote for your work. HELIX BUILDING SOLUTIONS LTD is the best extension builder in Purley. No obligation fre...
Total Construction is an established extension buildering business in Purley. We come highly recommended and provide competitive quotes for your wo...
Need to find an Extension Builder near you for all your extension buildering work?
Apex DIY provides a local, trusted extension buildering ...
Gre, CR8
The Original Roofing Company are here to help customers who need an Extension Builder in Purley. We offer a competitive rate to complete all your e...
L & S GENERAL BUILDING is an established and experienced local extension builder in Purley. Please contact us for a free, no obligation quote and c...
BK Building Services is a trusted extension builder serving customers in Purley and the surrounding area. Contact us to today to get a competitive ...
Relax... you have found a reliable extension builder in Purley. Neats General Builders is a friendly and reliable company based in Purley who consi...
Purley, CR8
EKJ Construction are here to help customers who need an Extension Builder in Purley. We offer a competitive rate to complete all your extension bui...

Building a granny annexe ranges from £87,064 (EKJ Construction based in CR8) to £87,408 (Apex DIY based in CR2), 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 Purley by posting a job with HaMuch. We will send it to extension builders in Purley who will be happy to help you.
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| Granny Annexe in Purley |
| Granny Annexe in Sanderstead |
| Granny Annexe in Coulsdon |
| Granny Annexe in Wallington |
| Granny Annexe in Croydon |
| Granny Annexe in Croydon |
| Granny Annexe in Whyteleafe |
| Granny Annexe in Carshalton |
| Granny Annexe in Whyteleafe |
| Granny Annexe in Belmont |
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 - £17,682

Two storey extension - £88,274

Build a timber frame extension - £26,182

Build a swimming pool - £81,182

Single storey extension - £58,648

Side return extension - £43,552

Install an RSJ - £2,382

Outbuilding - £10,182

Build a Mansard loft conversion - £52,182

Loft conversion - £35,460

Build a kitchen extension - £42,182

Hip to gable loft conversion - £42,182

Granny annexe - £87,182

Garden office - £10,182

Convert a Garage - £16,182

Garage - £18,682

Build a flat roof extension - £22,182

Build a dormer loft conversion - £42,182

Concrete foundations - £6,432

Convert a bungalow loft - £29,182

Convert a basement - £39,552