From £86,896
Need to find an Extension Builder near you for all your extension buildering work?
J.L Noblet provides a local, trusted extension builderin...
From £86,704
Experienced extension builder ready to quote for your work. DB Joinery & Building Contractors Ltd is the best extension builder in Penwortham. No ...
From £86,904
Our building services company NPD Builders have thirty years’ experience and have been helping customers in Preston and the surrounding area by p...
From £86,832
Need an Extension Builder in Penwortham? John Towers Builders has been helping local clients (20 mile radius) with their extension buildering jobs ...
From £86,824
Relax... you have found a reliable extension builder in Penwortham. Wilson Design & Build is a friendly and reliable company based in Penwortham wh...
From £86,688
Wilson Design & Build is a full service Construction Company dedicated to building and improving residential and commercial structures according to...
From £86,760
Our building services company J&B Developments are a small family run business who are trustworthy and reliable and have over twelve years of exper...
From £86,616
JS Brickwork are here to help customers who need an Extension Builder in Penwortham. We offer a competitive rate to complete all your extension bui...
From £86,552
Comprehensive Property Services is an established and experienced local extension builder in Penwortham. Please contact us for a free, no obligatio...
From £86,728
Need to find an Extension Builder near you for all your extension buildering work?
Bond Joinery & Building provides a local, trusted extens...

Building a granny annexe ranges from £86,552 (Comprehensive Property Services based in PR1) to £86,904 (NPD Builders based in PR2), 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 Penwortham by posting a job with HaMuch. We will send it to extension builders in Penwortham who will be happy to help you.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Granny Annexe near Penwortham | £30 | £218 |
| Granny Annexe near Preston | £30 | £218 |
| Granny Annexe near Fulwood | £31 | £217 |
| Granny Annexe near Bamber Bridge | £30 | £216 |
| Granny Annexe near Leyland | £30 | £223 |
| Granny Annexe near Chorley | £30 | £221 |
| Granny Annexe near Blackburn | £33 | £246 |
| Granny Annexe near Darwen | £34 | £253 |
| Granny Annexe near Lytham St Annes | £28 | £206 |
| Granny Annexe near Blackpool | £29 | £209 |
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 - £17,250

Two storey extension - £87,626

Build a timber frame extension - £25,750

Build a swimming pool - £80,750

Single storey extension - £50,008

Side return extension - £38,692

Install an RSJ - £1,950

Outbuilding - £9,750

Build a Mansard loft conversion - £51,750

Loft conversion - £31,410

Build a kitchen extension - £41,750

Hip to gable loft conversion - £41,750

Granny annexe - £86,750

Garden office - £9,750

Convert a Garage - £15,750

Garage - £18,250

Build a flat roof extension - £21,750

Build a dormer loft conversion - £41,750

Concrete foundations - £6,000

Convert a bungalow loft - £28,750

Convert a basement - £34,692