SMH Build & Renovate is an established extension buildering business in OL10. We come highly recommended and provide competitive quotes for your wo...
Paul Foran
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
Terry Howlett
We are a local building company who specialises in keeping our customers happy we are reliable friendly. We carry out all types of building wo...
H.B.S is an established extension buildering business in OL10. We come highly recommended and provide competitive quotes for your work.
Need an Extension Builder in OL10? MK Builders has been helping local clients (20 mile radius) with their extension buildering jobs for many years....
Amak Construction is an established and experienced local extension builder in OL10. Please contact us for a free, no obligation quote and competit...
Daniel
Experienced extension builder ready to quote for your work. Unity Building Services is the best extension builder in OL10. No obligation free quote...
Chino's Maintenance is a trusted extension builder serving customers in OL10 and the surrounding area. Contact us to today to get a competitive quo...
Ian Smedley
I G Smedley is an established and experienced local extension builder in OL10. Please contact us for a free, no obligation quote and competitive ra...
PLP CONSTRUCTION LTD is an established and experienced local extension builder in OL10. Please contact us for a free, no obligation quote and compe...

Building a granny annexe ranges from £85,960 (Aquatec Builder based in OL10) to £87,056 (I G Smedley based in M24), 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 OL10 by posting a job with HaMuch. We will send it to extension builders in OL10 who will be happy to help you.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Granny Annexe near Heywood | £30 | £221 |
| Granny Annexe near Middleton | £31 | £227 |
| Granny Annexe near Rochdale | £30 | £221 |
| Granny Annexe near Bury | £30 | £219 |
| Granny Annexe near Whitefield | £31 | £229 |
| Granny Annexe near Royton | £30 | £225 |
| Granny Annexe near Chadderton | £31 | £225 |
| Granny Annexe near Prestwich | £31 | £233 |
| Granny Annexe near Radcliffe | £30 | £220 |
| Granny Annexe near Oldham | £31 | £229 |
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 - £17,206

Two storey extension - £87,560

Build a timber frame extension - £25,706

Build a swimming pool - £80,706

Single storey extension - £49,128

Side return extension - £38,197

Install an RSJ - £1,906

Outbuilding - £9,706

Build a Mansard loft conversion - £51,706

Loft conversion - £30,998

Build a kitchen extension - £41,706

Hip to gable loft conversion - £41,706

Granny annexe - £86,706

Garden office - £9,706

Convert a Garage - £15,706

Garage - £18,206

Build a flat roof extension - £21,706

Build a dormer loft conversion - £41,706

Concrete foundations - £5,956

Convert a bungalow loft - £28,706

Convert a basement - £34,197