R Tredget & Son are here to help customers who need an Extension Builder in Stone. We offer a competitive rate to complete all your extension build...
Tommy House
HOUSE BUILDING SERVICES LIMITED is a trusted extension builder serving customers in Stone and the surrounding area. Contact us to today to get a co...
Relax... you have found a reliable extension builder in Stone. Sevcan Construction is a friendly and reliable company based in Stone who consider n...
Moss Roofing & Sons is an established and experienced local extension builder in Stone. Please contact us for a free, no obligation quote and compe...
Experienced extension builder ready to quote for your work. Keith Andrews Building is the best extension builder in Stone. No obligation free quote...
Need an Extension Builder in Stone? SD Build has been helping local clients (10 mile radius) with their extension buildering jobs for many years. G...
Joe
FLEX CONSTRUCTION LIMITED are here to help customers who need an Extension Builder in Stone. We offer a competitive rate to complete all your exten...
The England Team is an established extension buildering business in Stone. We come highly recommended and provide competitive quotes for your work....
P OUGHTON BUILDING is an established and experienced local extension builder in Stone. Please contact us for a free, no obligation quote and compet...
C & B Multi-Trader is an established extension buildering business in Stone. We come highly recommended and provide competitive quotes for your wor...

Building a granny annexe ranges from £86,944 (Keith Andrews Building based in RM16) to £87,616 (HOUSE BUILDING SERVICES LIMITED based in DA16), 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 Stone by posting a job with HaMuch. We will send it to extension builders in Stone who will be happy to help you.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Granny Annexe near Dartford | £51 | £273 |
| Granny Annexe near Grays | £41 | £261 |
| Granny Annexe near Northfleet | £41 | £261 |
| Granny Annexe near Chafford Hundred | £41 | £261 |
| Granny Annexe near South Ockendon | £58 | £276 |
| Granny Annexe near Thurrock | £41 | £260 |
| Granny Annexe near Gravesend | £40 | £260 |
| Granny Annexe near Bexley | £42 | £265 |
| Granny Annexe near Stanford-le-Hope | £40 | £254 |
| Granny Annexe near Barking | £43 | £261 |
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 - £17,735

Two storey extension - £88,353

Build a timber frame extension - £26,235

Build a swimming pool - £81,235

Single storey extension - £59,704

Side return extension - £44,146

Install an RSJ - £2,435

Outbuilding - £10,235

Build a Mansard loft conversion - £52,235

Loft conversion - £35,955

Build a kitchen extension - £42,235

Hip to gable loft conversion - £42,235

Granny annexe - £87,235

Garden office - £10,235

Convert a Garage - £16,235

Garage - £18,735

Build a flat roof extension - £22,235

Build a dormer loft conversion - £42,235

Concrete foundations - £6,485

Convert a bungalow loft - £29,235

Convert a basement - £40,146