SMH Build & Renovate is an established extension buildering business in Chadderton. We come highly recommended and provide competitive quotes for y...
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
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 Chadderton. We come highly recommended and provide competitive quotes for your work.
Need an Extension Builder in Chadderton? MK Builders has been helping local clients (20 mile radius) with their extension buildering jobs for many ...
Amak Construction is an established and experienced local extension builder in Chadderton. Please contact us for a free, no obligation quote and co...
Need an Extension Builder in Chadderton? G Wardley Building & Repairs has been helping local clients (20 mile radius) with their extension builderi...
Experienced extension builder ready to quote for your work. Advanced Builders & Roofers is the best extension builder in Chadderton. No obligation ...
Experienced extension builder ready to quote for your work. AW Building Solutions Ltd is the best extension builder in Chadderton. No obligation fr...

Building a granny annexe ranges from £85,960 (Aquatec Builder based in OL10) to £87,048 (Northern Garage Conversion based in OL9), 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 Chadderton by posting a job with HaMuch. We will send it to extension builders in Chadderton who will be happy to help you.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Granny Annexe near Chadderton | £31 | £225 |
| Granny Annexe near Oldham | £31 | £229 |
| Granny Annexe near Royton | £30 | £225 |
| Granny Annexe near Middleton | £31 | £227 |
| Granny Annexe near Failsworth | £35 | £236 |
| Granny Annexe near Ashton-under-Lyne | £36 | £232 |
| Granny Annexe near Droylsden | £34 | £237 |
| Granny Annexe near Rochdale | £30 | £221 |
| Granny Annexe near Heywood | £30 | £221 |
| Granny Annexe near Tameside | £35 | £232 |
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 - £17,229

Two storey extension - £87,593

Build a timber frame extension - £25,729

Build a swimming pool - £80,729

Single storey extension - £49,576

Side return extension - £38,449

Install an RSJ - £1,929

Outbuilding - £9,729

Build a Mansard loft conversion - £51,729

Loft conversion - £31,208

Build a kitchen extension - £41,729

Hip to gable loft conversion - £41,729

Granny annexe - £86,729

Garden office - £9,729

Convert a Garage - £15,729

Garage - £18,229

Build a flat roof extension - £21,729

Build a dormer loft conversion - £41,729

Concrete foundations - £5,979

Convert a bungalow loft - £28,729

Convert a basement - £34,449