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 Oldham. We come highly recommended and provide competitive quotes for your work.
Need an Extension Builder in Oldham? MK Builders has been helping local clients (20 mile radius) with their extension buildering jobs for many year...
Need an Extension Builder in Oldham? G Wardley Building & Repairs has been helping local clients (20 mile radius) with their extension buildering j...
Experienced extension builder ready to quote for your work. Advanced Builders & Roofers is the best extension builder in Oldham. No obligation free...
Experienced extension builder ready to quote for your work. AW Building Solutions Ltd is the best extension builder in Oldham. No obligation free q...
Need an Extension Builder in Oldham? W WELSBY BUILDING SERVICE has been helping local clients (20 mile radius) with their extension buildering jobs...
Trusted and professional extension builder in Oldham. Experienced in all extension buildering work and keeping within budget and on quote. We Build...

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 Oldham by posting a job with HaMuch. We will send it to extension builders in Oldham who will be happy to help you.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Granny Annexe near Oldham | £31 | £229 |
| Granny Annexe near Chadderton | £31 | £225 |
| Granny Annexe near Royton | £30 | £225 |
| Granny Annexe near Failsworth | £35 | £236 |
| Granny Annexe near Ashton-under-Lyne | £36 | £232 |
| Granny Annexe near Middleton | £31 | £227 |
| Granny Annexe near Droylsden | £34 | £237 |
| Granny Annexe near Tameside | £35 | £232 |
| Granny Annexe near Stalybridge | £38 | £231 |
| Granny Annexe near Dukinfield | £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 - £17,240

Two storey extension - £87,610

Build a timber frame extension - £25,740

Build a swimming pool - £80,740

Single storey extension - £49,800

Side return extension - £38,575

Install an RSJ - £1,940

Outbuilding - £9,740

Build a Mansard loft conversion - £51,740

Loft conversion - £31,313

Build a kitchen extension - £41,740

Hip to gable loft conversion - £41,740

Granny annexe - £86,740

Garden office - £9,740

Convert a Garage - £15,740

Garage - £18,240

Build a flat roof extension - £21,740

Build a dormer loft conversion - £41,740

Concrete foundations - £5,990

Convert a bungalow loft - £28,740

Convert a basement - £34,575