From £86,640
Need to find an Extension Builder near you for all your extension buildering work?
Pennine Loft Conversions provides a local, trusted exten...
From £86,768
New era developments is a small local limited company. Who create better living spaces . On time and on buget. To a very high standard. Thanks tony...
From £87,048
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
From £86,672
Experienced extension builder ready to quote for your work. KG Builders & Construction Ltd is the best extension builder in Royton. No obligation f...
From £86,848
I teach others on how to achieve flawless finishes through my blog on my website. i also am a stickler for perfection. I'm very friendly and punctu...
From £87,056
I G Smedley is an established and experienced local extension builder in Royton. Please contact us for a free, no obligation quote and competitive ...
From £86,760
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
From £86,688
Trusted and professional extension builder in Royton. Experienced in all extension buildering work and keeping within budget and on quote. AJD Deve...
From £87,096
We are a family ran business that has gone through three generations of management. We pride ourselves in providing the highest quality workmanship...

Building a granny annexe ranges from £86,184 (Valdecor based in OL8) to £87,096 (N/W Builders based in Ol8), 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 Royton by posting a job with HaMuch. We will send it to extension builders in Royton who will be happy to help you.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Granny Annexe near Royton | £30 | £225 |
| Granny Annexe near Chadderton | £31 | £224 |
| Granny Annexe near Oldham | £31 | £228 |
| Granny Annexe near Middleton | £31 | £227 |
| Granny Annexe near Rochdale | £30 | £221 |
| Granny Annexe near Failsworth | £35 | £235 |
| Granny Annexe near Heywood | £30 | £222 |
| Granny Annexe near Ashton-under-Lyne | £36 | £231 |
| Granny Annexe near Droylsden | £34 | £237 |
| Granny Annexe near Tameside | £35 | £231 |
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 - £17,276

Two storey extension - £87,664

Build a timber frame extension - £25,776

Build a swimming pool - £80,776

Single storey extension - £50,520

Side return extension - £38,980

Install an RSJ - £1,976

Outbuilding - £9,776

Build a Mansard loft conversion - £51,776

Loft conversion - £31,650

Build a kitchen extension - £41,776

Hip to gable loft conversion - £41,776

Granny annexe - £86,776

Garden office - £9,776

Convert a Garage - £15,776

Garage - £18,276

Build a flat roof extension - £21,776

Build a dormer loft conversion - £41,776

Concrete foundations - £6,026

Convert a bungalow loft - £28,776

Convert a basement - £34,980