From £86,392
Barrow-in-Furness, LA13
LJS Building Property Service Ltd are here to help customers who need an Extension Builder in Barrow-in-furness. We offer a competitive rate to com...
From £86,520
Barrow-in-Furness, LA13
I have completed 98 extensions and loft conversion over the past 20 years
From £86,592
Barrow-in-Furness, LA14
Need to find an Extension Builder near you for all your extension buildering work?
T P MCNULTY CONSTRUCTION LTD provides a local, trusted e...
From £87,000
Tweeter is an established and experienced local extension builder in Barrow-in-furness. Please contact us for a free, no obligation quote and compe...
From £86,712
Barrow-in-Furness, LA14
Trusted and professional extension builder in Barrow-in-furness. Experienced in all extension buildering work and keeping within budget and on quot...
From £86,648
B & K BUILDERS LTD is an established extension buildering business in Barrow-in-furness. We come highly recommended and provide competitive quotes ...
From £87,480
MIKE CROWE BUILDING & CONSTRUC is an established and experienced local extension builder in Barrow-in-furness. Please contact us for a free, no obl...
From £86,560
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
From £86,648
MARK TAYLOR CONSTRUCTION LTD is an established extension buildering business in Barrow-in-furness. We come highly recommended and provide competiti...

Building a granny annexe ranges from £86,392 (LJS Building Property Service Ltd based in LA13) to £87,480 (MIKE CROWE BUILDING & CONSTRUC based in LA12), 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 Barrow-in-furness by posting a job with HaMuch. We will send it to extension builders in Barrow-in-furness who will be happy to help you.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Granny Annexe near Barrow-in-Furness | £25 | £204 |
| Granny Annexe near Morecambe | £25 | £212 |
| Granny Annexe near Fleetwood | £28 | £206 |
| Granny Annexe near Lancaster | £25 | £211 |
| Granny Annexe near Blackpool | £29 | £209 |
| Granny Annexe near Kendal | £28 | £236 |
| Granny Annexe near Lytham St Annes | £28 | £206 |
| Granny Annexe near Fulwood | £31 | £217 |
| Granny Annexe near Penwortham | £30 | £218 |
| Granny Annexe near Preston | £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 - £17,194

Two storey extension - £87,542

Build a timber frame extension - £25,694

Build a swimming pool - £80,694

Single storey extension - £48,888

Side return extension - £38,062

Install an RSJ - £1,894

Outbuilding - £9,694

Build a Mansard loft conversion - £51,694

Loft conversion - £30,885

Build a kitchen extension - £41,694

Hip to gable loft conversion - £41,694

Granny annexe - £86,694

Garden office - £9,694

Convert a Garage - £15,694

Garage - £18,194

Build a flat roof extension - £21,694

Build a dormer loft conversion - £41,694

Concrete foundations - £5,944

Convert a bungalow loft - £28,694

Convert a basement - £34,062