Gravesend, DA12
Need an Extension Builder in DA12? SD Build has been helping local clients (10 mile radius) with their extension buildering jobs for many years. Ge...
From £87,104
Bungar & Co ltd is a trusted extension builder serving customers in DA12 and the surrounding area. Contact us to today to get a competitive quote f...
From £86,920
Kent, DA12
Experienced extension builder ready to quote for your work. HRS Home Renovation Solutions is the best extension builder in DA12. No obligation fr...
From £87,280
Need to find an Extension Builder near you for all your extension buildering work?
Ciad Building Services Ltd provides a local, trusted ext...
From £87,224
Kent, DA12
Brown Builders UK Ltd is a trusted extension builder serving customers in DA12 and the surrounding area. Contact us to today to get a competitive q...
From £87,280
GLADHOUSE CONSTRUCTION are here to help customers who need an Extension Builder in DA12. We offer a competitive rate to complete all your extension...
From £87,096
Beautiful Kitchens is a family-run company, owned and directed by husband and wife Debbie and Nigel Powell along with their daughter, Bethany, and ...

Building a granny annexe ranges from £86,920 (HRS Home Renovation Solutions based in DA12) to £87,280 (Ciad Building Services Ltd based in DA12), 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 DA12 by posting a job with HaMuch. We will send it to extension builders in DA12 who will be happy to help you.
| Borough in London |
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| Granny Annexe in Gravesend |
| Granny Annexe in Northfleet |
| Granny Annexe in Tilbury |
| Granny Annexe in Meopham |
| Granny Annexe in Swanscombe |
| Granny Annexe in Grays |
| Granny Annexe in Hartley |
| Granny Annexe in Chafford Hundred |
| Granny Annexe in Stone |
| Granny Annexe in Strood |
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 - £17,639

Two storey extension - £88,209

Build a timber frame extension - £26,139

Build a swimming pool - £81,139

Single storey extension - £57,789

Side return extension - £43,069

Install an RSJ - £2,339

Outbuilding - £10,139

Build a Mansard loft conversion - £52,139

Loft conversion - £35,057

Build a kitchen extension - £42,139

Hip to gable loft conversion - £42,139

Granny annexe - £87,139

Garden office - £10,139

Convert a Garage - £16,139

Garage - £18,639

Build a flat roof extension - £22,139

Build a dormer loft conversion - £42,139

Concrete foundations - £6,389

Convert a bungalow loft - £29,139

Convert a basement - £39,069