From £86,976
We are a successful company with many years experience in our trade. We can expertly provide consultation & solutions for various client requiremen...
From £86,640
Relax... you have found a reliable extension builder in DN9. PASUDA BUILDINGS LTD is a friendly and reliable company based in DN9 who consider no j...
From £86,952
PASUDA BUILDINGS LTD is an established and experienced local extension builder in DN9. Please contact us for a free, no obligation quote and compet...
From £86,640
C.L.Corfield Ltd are a well estblished (1963) family run business, who take great pride in providing a quality service. Our services over the years...
From £86,928
CRAIG PARR BUILDERS is an established extension buildering business in DN9. We come highly recommended and provide competitive quotes for your work...
From £86,664
1980 are here to help customers who need an Extension Builder in DN9. We offer a competitive rate to complete all your extension buildering jobs to...
From £87,216
At Northfield General Builders Ltd we pride ourselves on being the go-to bathroom fitters for discerning customers in the Doncaster area.At...
From £87,144
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
From £86,864
Trusted and professional extension builder in DN9. Experienced in all extension buildering work and keeping within budget and on quote. Gilman+Chil...
From £86,808
Relax... you have found a reliable extension builder in DN9. LFC Builders is a friendly and reliable company based in DN9 who consider no job as to...

Building a granny annexe ranges from £86,640 (PASUDA BUILDINGS LTD based in DN8) 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 DN9 by posting a job with HaMuch. We will send it to extension builders in DN9 who will be happy to help you.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Granny Annexe near Gainsborough | £30 | £234 |
| Granny Annexe near Doncaster | £29 | £238 |
| Granny Annexe near Bassetlaw | £31 | £243 |
| Granny Annexe near Scunthorpe | £26 | £207 |
| Granny Annexe near Retford | £31 | £243 |
| Granny Annexe near Goole | £26 | £217 |
| Granny Annexe near North Lincolnshire | £28 | £216 |
| Granny Annexe near Wickersley | £33 | £257 |
| Granny Annexe near Worksop | £33 | £265 |
| Granny Annexe near Rotherham | £33 | £257 |
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 - £17,383

Two storey extension - £87,825

Build a timber frame extension - £25,883

Build a swimming pool - £80,883

Single storey extension - £52,664

Side return extension - £40,186

Install an RSJ - £2,083

Outbuilding - £9,883

Build a Mansard loft conversion - £51,883

Loft conversion - £32,655

Build a kitchen extension - £41,883

Hip to gable loft conversion - £41,883

Granny annexe - £86,883

Garden office - £9,883

Convert a Garage - £15,883

Garage - £18,383

Build a flat roof extension - £21,883

Build a dormer loft conversion - £41,883

Concrete foundations - £6,133

Convert a bungalow loft - £28,883

Convert a basement - £36,186