From £86,472
Ascot Property Solutions Limited is an established and experienced local extension builder in Corby. Please contact us for a free, no obligation qu...
From £86,656
Corby, NN17
B GS GENERAL BUILDERS are here to help customers who need an Extension Builder in Corby. We offer a competitive rate to complete all your extension...
From £86,576
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
From £86,728
Experienced house builder. Eco structures from Denmark as well as conventional build. Extensions. Bathrooms. Kitchens and support steels when requi...
From £86,968
Relax... you have found a reliable extension builder in Corby. Jogga Construction is a friendly and reliable company based in Corby who consider no...
From £87,056
Kettering Mobile Sandblasting are here to help customers who need an Extension Builder in Corby. We offer a competitive rate to complete all your e...
From £86,760
Experienced extension builder ready to quote for your work. GARY TAYLOR BUILDERS LTD is the best extension builder in Corby. No obligation free quo...
From £86,872
I Plowright Brickwork is an established extension buildering business in Corby. We come highly recommended and provide competitive quotes for your ...
From £86,880
sunnyday foster home is an established and experienced local extension builder in Corby. Please contact us for a free, no obligation quote and comp...
From £87,344
Need to find an Extension Builder near you for all your extension buildering work?
shawproperty provides a local, trusted extension builder...

Building a granny annexe ranges from £86,472 (Ascot Property Solutions Limited based in NN17) to £87,344 (Shawproperty based in PE8), 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 Corby by posting a job with HaMuch. We will send it to extension builders in Corby who will be happy to help you.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Granny Annexe near Corby | £30 | £214 |
| Granny Annexe near Kettering | £34 | £237 |
| Granny Annexe near Market Harborough | £31 | £217 |
| Granny Annexe near Wellingborough | £39 | £251 |
| Granny Annexe near Stamford | £35 | £248 |
| Granny Annexe near Rushden | £34 | £231 |
| Granny Annexe near Wigston | £28 | £214 |
| Granny Annexe near Hamilton | £29 | £216 |
| Granny Annexe near Peterborough | £42 | £280 |
| Granny Annexe near Oadby | £28 | £211 |
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 - £17,331

Two storey extension - £87,747

Build a timber frame extension - £25,831

Build a swimming pool - £80,831

Single storey extension - £51,624

Side return extension - £39,601

Install an RSJ - £2,031

Outbuilding - £9,831

Build a Mansard loft conversion - £51,831

Loft conversion - £32,168

Build a kitchen extension - £41,831

Hip to gable loft conversion - £41,831

Granny annexe - £86,831

Garden office - £9,831

Convert a Garage - £15,831

Garage - £18,331

Build a flat roof extension - £21,831

Build a dormer loft conversion - £41,831

Concrete foundations - £6,081

Convert a bungalow loft - £28,831

Convert a basement - £35,601