From £86,536
4D BUILDERS LTD are here to help customers who need an Extension Builder in CT14. We offer a competitive rate to complete all your e...

Building a granny annexe ranges from £86,536 (4D BUILDERS LTD based in CT14) to £86,536 (4D BUILDERS LTD based in CT14), 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 CT14 by posting a job with HaMuch. We will send it to extension builders in CT14 who will be happy to help you.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Granny Annexe near Deal | £26 | £199 |
| Granny Annexe near Dover | £29 | £226 |
| Granny Annexe near Margate | £27 | £208 |
| Granny Annexe near Ramsgate | £27 | £208 |
| Granny Annexe near Thanet | £27 | £208 |
| Granny Annexe near Broadstairs | £27 | £208 |
| Granny Annexe near Folkestone | £31 | £233 |
| Granny Annexe near Canterbury | £31 | £232 |
| Granny Annexe near Herne Bay | £28 | £213 |
| Granny Annexe near Hythe | £31 | £228 |
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 - £17,036

Two storey extension - £87,304

Build a timber frame extension - £25,536

Build a swimming pool - £80,536

Single storey extension - £45,720

Side return extension - £36,280

Install an RSJ - £1,736

Outbuilding - £9,536

Build a Mansard loft conversion - £51,536

Loft conversion - £29,400

Build a kitchen extension - £41,536

Hip to gable loft conversion - £41,536

Granny annexe - £86,536

Garden office - £9,536

Convert a Garage - £15,536

Garage - £18,036

Build a flat roof extension - £21,536

Build a dormer loft conversion - £41,536

Concrete foundations - £5,786

Convert a bungalow loft - £28,536

Convert a basement - £32,280