From £86,800
viking build is an established extension buildering business in DN15. We come highly recommended and provide competitive quotes for your work.
...From £86,480
Experienced extension builder ready to quote for your work. Northfield General Builders Ltd is the best extension builder in DN15. No obligation fr...
From £86,944
Trusted and professional extension builder in DN15. Experienced in all extension buildering work and keeping within budget and on quote. Jaymi Wrig...
From £86,600
A Kemp Build is a trusted extension builder serving customers in DN15 and the surrounding area. Contact us to today to get a competitive quote for ...
From £86,552
Marhsall is an established extension buildering business in DN15. We come highly recommended and provide competitive quotes for your work.
From £86,640
Relax... you have found a reliable extension builder in DN15. PASUDA BUILDINGS LTD is a friendly and reliable company based in DN15 who consider no...
From £86,952
PASUDA BUILDINGS LTD is an established and experienced local extension builder in DN15. Please contact us for a free, no obligation quote and compe...
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 £86,584
Gerard & Huby Building Specialist are here to help customers who need an Extension Builder in DN15. We offer a competitive rate to complete all you...
From £87,016
ABBS Building & Plastics are here to help customers who need an Extension Builder in DN15. We offer a competitive rate to complete all your extensi...

Building a granny annexe ranges from £86,480 (Northfield General Builders Ltd based in DN17) to £87,016 (ABBS Building & Plastics based in DN14), 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 DN15 by posting a job with HaMuch. We will send it to extension builders in DN15 who will be happy to help you.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Granny Annexe near Scunthorpe | £26 | £207 |
| Granny Annexe near North Lincolnshire | £28 | £216 |
| Granny Annexe near Willerby | £29 | £221 |
| Granny Annexe near Goole | £26 | £217 |
| Granny Annexe near Gainsborough | £30 | £234 |
| Granny Annexe near Hull | £29 | £223 |
| Granny Annexe near East Riding | £29 | £223 |
| Granny Annexe near Beverley | £29 | £223 |
| Granny Annexe near Selby | £30 | £240 |
| Granny Annexe near Doncaster | £29 | £238 |
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 - £17,221

Two storey extension - £87,581

Build a timber frame extension - £25,721

Build a swimming pool - £80,721

Single storey extension - £49,416

Side return extension - £38,359

Install an RSJ - £1,921

Outbuilding - £9,721

Build a Mansard loft conversion - £51,721

Loft conversion - £31,133

Build a kitchen extension - £41,721

Hip to gable loft conversion - £41,721

Granny annexe - £86,721

Garden office - £9,721

Convert a Garage - £15,721

Garage - £18,221

Build a flat roof extension - £21,721

Build a dormer loft conversion - £41,721

Concrete foundations - £5,971

Convert a bungalow loft - £28,721

Convert a basement - £34,359