From £86,592
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
From £86,776
Relax... you have found a reliable extension builder in M29. David Anderson Builders is a friendly and reliable company based in M29 who consider n...
From £86,816
Construction Covered is a trusted extension builder serving customers in M29 and the surrounding area. Contact us to today to get a competitive quo...
From £86,976
Our building services company Casa Building Solutions Ltd was established in 2008. Since then we have been helping customers in Manchester and the ...
From £87,000
SBA Facilities is a family run business founded by Director, Josef who has over 25 years of experience with the corporate, commercial, and domestic...
From £86,800
Need to find an Extension Builder near you for all your extension buildering work?
AD TAYLOR JOINER & BUILDER provides a local, trusted ext...
From £87,032
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
From £86,784
Need an Extension Builder in M29? Boothwells Building Services has been helping local clients (20 mile radius) with their extension buildering jobs...
From £86,864
We make immersive virtual experiences that transport people to real-life architecture projects in order to imagine the future.Architecture is portr...
From £86,456
APS pointing and property maintenance offers a complete building service from small patch pointing to full refurb or extensions. Competitiv...

Building a granny annexe ranges from £86,456 (Aps pointing and property maintenance based in WN2) to £87,032 (Triple Check ltd based in Wn2), 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 M29 by posting a job with HaMuch. We will send it to extension builders in M29 who will be happy to help you.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Granny Annexe near Atherton | £31 | £223 |
| Granny Annexe near Little Hulton | £30 | £220 |
| Granny Annexe near Leigh | £31 | £224 |
| Granny Annexe near Farnworth | £30 | £219 |
| Granny Annexe near Westhoughton | £31 | £222 |
| Granny Annexe near Eccles | £32 | £237 |
| Granny Annexe near Irlam | £32 | £225 |
| Granny Annexe near Bolton | £31 | £219 |
| Granny Annexe near Swinton | £32 | £235 |
| Granny Annexe near Hindley | £30 | £218 |
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 - £17,310

Two storey extension - £87,714

Build a timber frame extension - £25,810

Build a swimming pool - £80,810

Single storey extension - £51,192

Side return extension - £39,358

Install an RSJ - £2,010

Outbuilding - £9,810

Build a Mansard loft conversion - £51,810

Loft conversion - £31,965

Build a kitchen extension - £41,810

Hip to gable loft conversion - £41,810

Granny annexe - £86,810

Garden office - £9,810

Convert a Garage - £15,810

Garage - £18,310

Build a flat roof extension - £21,810

Build a dormer loft conversion - £41,810

Concrete foundations - £6,060

Convert a bungalow loft - £28,810

Convert a basement - £35,358