From £86,824
Relax... you have found a reliable extension builder in CT15. Cosbuild and Maintenance ltd is a friendly and reliable company based in CT15 who con...
From £86,368
Need to find an Extension Builder near you for all your extension buildering work?
A-Pex Building provides a local, trusted extension build...
From £86,656
John Nicoll trained as a joiner and carpenter in St Andrew's, Fife. For over 30 years, he has been operating in the London area - setting up 5 Ways...
From £86,536
4D BUILDERS LTD are here to help customers who need an Extension Builder in CT15. We offer a competitive rate to complete all your e...
From £86,736
Need an Extension Builder in CT15? M LONG T/A MJ BUILDINGS has been helping local clients (20 mile radius) with their extension buildering jobs for...
From £86,664
Experienced extension builder ready to quote for your work. Buildstead is the best extension builder in CT15. No obligation free quotes and many ha...
From £86,936
Experienced extension builder ready to quote for your work. THE EAST CLIFF BUILDING CO LTD is the best extension builder in CT15. No obligation fre...
From £86,776
Tom Clark - Raison Home UK is a trusted extension builder serving customers in CT15 and the surrounding area. Contact us to today to get a competit...
From £86,664
Pentland Homes is an established extension buildering business in CT15. We come highly recommended and provide competitive quotes for your work.
From £86,816
Relax... you have found a reliable extension builder in CT15. LEVEL CONSTRUCTION is a friendly and reliable company based in CT15 who consider no ...

Building a granny annexe ranges from £86,368 (A-Pex Building based in CT17) to £86,936 (THE EAST CLIFF BUILDING CO LTD based in CT18), 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 CT15 by posting a job with HaMuch. We will send it to extension builders in CT15 who will be happy to help you.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Granny Annexe near Dover | £25 | £199 |
| Granny Annexe near Deal | £22 | £174 |
| Granny Annexe near Folkestone | £27 | £203 |
| Granny Annexe near Hythe | £27 | £196 |
| Granny Annexe near Canterbury | £28 | £211 |
| Granny Annexe near Margate | £24 | £187 |
| Granny Annexe near Ramsgate | £24 | £187 |
| Granny Annexe near Thanet | £24 | £187 |
| Granny Annexe near Broadstairs | £24 | £187 |
| Granny Annexe near Herne Bay | £24 | £184 |
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 - £17,198

Two storey extension - £87,546

Build a timber frame extension - £25,698

Build a swimming pool - £80,698

Single storey extension - £48,952

Side return extension - £38,098

Install an RSJ - £1,898

Outbuilding - £9,698

Build a Mansard loft conversion - £51,698

Loft conversion - £30,915

Build a kitchen extension - £41,698

Hip to gable loft conversion - £41,698

Granny annexe - £86,698

Garden office - £9,698

Convert a Garage - £15,698

Garage - £18,198

Build a flat roof extension - £21,698

Build a dormer loft conversion - £41,698

Concrete foundations - £5,948

Convert a bungalow loft - £28,698

Convert a basement - £34,098