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Lancashire, BB1
Need to find an Extension Builder near you for all your extension buildering work?
D Parker Design & Build provides a local, trusted extens...
WM Brickwork & Pointing are here to help customers who need an Extension Builder in Lancashire. We offer a competitive rate to complete all your ex...
Darren Gaynor is a trusted extension builder serving customers in Lancashire and the surrounding area. Contact us to today to get a competitive quo...
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
Need an Extension Builder in Lancashire? NOBLETT BUILDING SERVICES has been helping local clients (20 mile radius) with their extension buildering ...
Experienced extension builder ready to quote for your work. SMH Joinery & Building is the best extension builder in Lancashire. No obligation free ...
Need to find an Extension Builder near you for all your extension buildering work?
J. Grimshaw provides a local, trusted extension builderi...
Lonsdale Construction is a trusted extension builder serving customers in Lancashire and the surrounding area. Contact us to today to get a competi...
Ash
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
Trusted and professional extension builder in Lancashire. Experienced in all extension buildering work and keeping within budget and on quote. O. M...

Building a granny annexe ranges from £86,624 (WM Brickwork & Pointing based in BB1) to £87,000 (O. Morris Construction based in PR5), 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 Lancashire by posting a job with HaMuch. We will send it to extension builders in Lancashire who will be happy to help you.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Granny Annexe near Blackburn | £33 | £247 |
| Granny Annexe near Accrington | £33 | £244 |
| Granny Annexe near Darwen | £34 | £255 |
| Granny Annexe near Rawtenstall | £29 | £213 |
| Granny Annexe near Bamber Bridge | £30 | £216 |
| Granny Annexe near Chorley | £30 | £221 |
| Granny Annexe near Burnley | £29 | £219 |
| Granny Annexe near Preston | £30 | £218 |
| Granny Annexe near Leyland | £30 | £223 |
| Granny Annexe near Fulwood | £31 | £217 |
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 - £17,298

Two storey extension - £87,698

Build a timber frame extension - £25,798

Build a swimming pool - £80,798

Single storey extension - £50,968

Side return extension - £39,232

Install an RSJ - £1,998

Outbuilding - £9,798

Build a Mansard loft conversion - £51,798

Loft conversion - £31,860

Build a kitchen extension - £41,798

Hip to gable loft conversion - £41,798

Granny annexe - £86,798

Garden office - £9,798

Convert a Garage - £15,798

Garage - £18,298

Build a flat roof extension - £21,798

Build a dormer loft conversion - £41,798

Concrete foundations - £6,048

Convert a bungalow loft - £28,798

Convert a basement - £35,232