From £86,552
Marhsall is an established extension buildering business in Thorne. We come highly recommended and provide competitive quotes for your work.
From £87,064
Prestine Property Maintenance Services is an established and experienced local extension builder in Thorne. Please contact us for a free, no obliga...
From £86,864
Yorkshire Garage Openers is an established extension buildering business in Thorne. We come highly recommended and provide competitive quotes for y...
From £86,864
Harvie Construction is an established and experienced local extension builder in Thorne. Please contact us for a free, no obligation quote and comp...
From £86,840
DAVID LEAKE CONSTRUCTION LTD is an established and experienced local extension builder in Thorne. Please contact us for a free, no obligation quote...
From £86,688
Lace Construction Ltd are here to help customers who need an Extension Builder in Thorne. We offer a competitive rate to complete all your extensio...
From £86,944
M C BUILDER (YORKSHIRE) LTD is an established extension buildering business in Thorne. We come highly recommended and provide competitive quotes fo...
From £86,744
Trusted and professional extension builder in Thorne. Experienced in all extension buildering work and keeping within budget and on quote. MERCER P...
From £86,712
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
From £86,664
1980 are here to help customers who need an Extension Builder in Thorne. We offer a competitive rate to complete all your extension buildering jobs...

Building a granny annexe ranges from £86,552 (Marhsall based in HU15) to £87,064 (Prestine Property Maintenance Services based in YO8), 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 Thorne by posting a job with HaMuch. We will send it to extension builders in Thorne who will be happy to help you.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Granny Annexe near Goole | £26 | £217 |
| Granny Annexe near Doncaster | £29 | £238 |
| Granny Annexe near Selby | £30 | £240 |
| Granny Annexe near Scunthorpe | £26 | £207 |
| Granny Annexe near Pontefract | £30 | £228 |
| Granny Annexe near North Lincolnshire | £28 | £216 |
| Granny Annexe near Gainsborough | £30 | £234 |
| Granny Annexe near Castleford | £30 | £225 |
| Granny Annexe near Wickersley | £33 | £257 |
| Granny Annexe near Bassetlaw | £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 - £17,294

Two storey extension - £87,690

Build a timber frame extension - £25,794

Build a swimming pool - £80,794

Single storey extension - £50,872

Side return extension - £39,178

Install an RSJ - £1,994

Outbuilding - £9,794

Build a Mansard loft conversion - £51,794

Loft conversion - £31,815

Build a kitchen extension - £41,794

Hip to gable loft conversion - £41,794

Granny annexe - £86,794

Garden office - £9,794

Convert a Garage - £15,794

Garage - £18,294

Build a flat roof extension - £21,794

Build a dormer loft conversion - £41,794

Concrete foundations - £6,044

Convert a bungalow loft - £28,794

Convert a basement - £35,178