From £87,008
Ethos Property Developments Limited is an established extension buildering business in Walkden. We come highly recommended and provide competitive ...
From £85,960
Member since November 2019
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
From £86,776
Walkden, M28
Relax... you have found a reliable extension builder in Walkden. David Anderson Builders is a friendly and reliable company based in Walkden who co...
From £86,792
Need to find an Extension Builder near you for all your extension buildering work?
DC Contractors provides a local, trusted extension build...
From £86,960
Need to find an Extension Builder near you for all your extension buildering work?
ESBP Specialists Ltd provides a local, trusted extension...
From £86,848
Trusted and professional extension builder in Walkden. Experienced in all extension buildering work and keeping within budget and on quote. We Buil...
From £86,608
Need an Extension Builder in Walkden? MK Builders has been helping local clients (20 mile radius) with their extension buildering jobs for many yea...
From £86,632
Trusted and professional extension builder in Walkden. Experienced in all extension buildering work and keeping within budget and on quote. Fit-on ...
From £87,048
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...

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 Walkden by posting a job with HaMuch. We will send it to extension builders in Walkden who will be happy to help you.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Granny Annexe near Little Hulton | £30 | £220 |
| Granny Annexe near Farnworth | £30 | £219 |
| Granny Annexe near Swinton | £32 | £234 |
| Granny Annexe near Eccles | £32 | £236 |
| Granny Annexe near Atherton | £31 | £223 |
| Granny Annexe near Radcliffe | £30 | £220 |
| Granny Annexe near Bolton | £31 | £219 |
| Granny Annexe near Urmston | £32 | £231 |
| Granny Annexe near Salford | £32 | £237 |
| Granny Annexe near Whitefield | £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 - £17,182

Two storey extension - £87,522

Build a timber frame extension - £25,682

Build a swimming pool - £80,682

Single storey extension - £48,632

Side return extension - £37,918

Install an RSJ - £1,882

Outbuilding - £9,682

Build a Mansard loft conversion - £51,682

Loft conversion - £30,765

Build a kitchen extension - £41,682

Hip to gable loft conversion - £41,682

Granny annexe - £86,682

Garden office - £9,682

Convert a Garage - £15,682

Garage - £18,182

Build a flat roof extension - £21,682

Build a dormer loft conversion - £41,682

Concrete foundations - £5,932

Convert a bungalow loft - £28,682

Convert a basement - £33,918