Paul Mccreadie
1980 are here to help customers who need an Extension Builder in DN5. We offer a competitive rate to complete all your extension buildering jobs to...
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
Antony Foster
Ajf builddrs is a trusted extension builder serving customers in DN5 and the surrounding area. Contact us to today to get a competitive quote for e...
At Northfield General Builders Ltd we pride ourselves on being the go-to bathroom fitters for discerning customers in the Doncaster area.At...
From £87,000
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...

Building a granny annexe ranges from £86,664 (1980 based in DN2) to £87,216 (Northfield General Builders Ltd based in DN2), 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 DN5 by posting a job with HaMuch. We will send it to extension builders in DN5 who will be happy to help you.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Granny Annexe near Doncaster | £29 | £238 |
| Granny Annexe near Wickersley | £33 | £257 |
| Granny Annexe near Rotherham | £33 | £257 |
| Granny Annexe near Pontefract | £30 | £228 |
| Granny Annexe near Barnsley | £31 | £242 |
| Granny Annexe near Castleford | £30 | £225 |
| Granny Annexe near Normanton | £30 | £233 |
| Granny Annexe near Goole | £26 | £217 |
| Granny Annexe near Bassetlaw | £31 | £243 |
| Granny Annexe near Sheffield | £32 | £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 - £17,497

Two storey extension - £87,995

Build a timber frame extension - £25,997

Build a swimming pool - £80,997

Single storey extension - £54,936

Side return extension - £41,464

Install an RSJ - £2,197

Outbuilding - £9,997

Build a Mansard loft conversion - £51,997

Loft conversion - £33,720

Build a kitchen extension - £41,997

Hip to gable loft conversion - £41,997

Granny annexe - £86,997

Garden office - £9,997

Convert a Garage - £15,997

Garage - £18,497

Build a flat roof extension - £21,997

Build a dormer loft conversion - £41,997

Concrete foundations - £6,247

Convert a bungalow loft - £28,997

Convert a basement - £37,464