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Derren Ward
Green Exteriors Ltd are here to help customers who need an Extension Builder in S60. We offer a competitive rate to complete all your extension bui...
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
Trusted and professional extension builder in S60. Experienced in all extension buildering work and keeping within budget and on quote. Britishbuil...
Need an Extension Builder in S60? Property Plus has been helping local clients (20 mile radius) with their extension buildering jobs for many years...

Building a granny annexe ranges from £86,840 (Britishbuildogs based in S65) to £88,392 (Green Exteriors Ltd based in S60), 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 S60 by posting a job with HaMuch. We will send it to extension builders in S60 who will be happy to help you.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Granny Annexe near Rotherham | £32 | £257 |
| Granny Annexe near Wickersley | £32 | £258 |
| Granny Annexe near Sheffield | £32 | £260 |
| Granny Annexe near Dronfield | £33 | £262 |
| Granny Annexe near Barnsley | £31 | £242 |
| Granny Annexe near Worksop | £33 | £265 |
| Granny Annexe near Doncaster | £29 | £238 |
| Granny Annexe near Chesterfield | £33 | £257 |
| Granny Annexe near Bassetlaw | £31 | £243 |
| Granny Annexe near Retford | £31 | £243 |
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 - £17,874

Two storey extension - £88,561

Build a timber frame extension - £26,374

Build a swimming pool - £81,374

Single storey extension - £62,480

Side return extension - £45,708

Install an RSJ - £2,574

Outbuilding - £10,374

Build a Mansard loft conversion - £52,374

Loft conversion - £37,256

Build a kitchen extension - £42,374

Hip to gable loft conversion - £42,374

Granny annexe - £87,374

Garden office - £10,374

Convert a Garage - £16,374

Garage - £18,874

Build a flat roof extension - £22,374

Build a dormer loft conversion - £42,374

Concrete foundations - £6,624

Convert a bungalow loft - £29,374

Convert a basement - £41,708