From £86,584
Trusted and professional extension builder in LN12. Experienced in all extension buildering work and keeping within budget and on quote. A J REESON...
From £86,576
R L Hinman Builder is an established and experienced local extension builder in LN12. Please contact us for a free, no obligation quote and competi...
From £86,928
Relax... you have found a reliable extension builder in LN12. JOHN WILKINSON BUILDER LTD is a friendly and reliable company based in LN12 who consi...
From £86,528
Trusted and professional extension builder in LN12. Experienced in all extension buildering work and keeping within budget and on quote. PAUL JACKS...
From £87,304
P MARSH BUILDING CONTRACTOR is an established and experienced local extension builder in LN12. Please contact us for a free, no obligation quote an...
From £87,456
Need to find an Extension Builder near you for all your extension buildering work?
One Stop Building and Property Solutions Ltd provides a ...

Building a granny annexe ranges from £86,528 (PAUL JACKSON BUILDING CONTRS based in PE23) to £87,456 (One Stop Building and Property Solutions Ltd based in DN37), 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 LN12 by posting a job with HaMuch. We will send it to extension builders in LN12 who will be happy to help you.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Granny Annexe near East Lindsey | £27 | £198 |
| Granny Annexe near Cleethorpes | £32 | £246 |
| Granny Annexe near North East Lincolnshire | £32 | £246 |
| Granny Annexe near Grimsby | £32 | £246 |
| Granny Annexe near Boston | £28 | £262 |
| Granny Annexe near Hull | £29 | £223 |
| Granny Annexe near Willerby | £29 | £221 |
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 - £17,396

Two storey extension - £87,844

Build a timber frame extension - £25,896

Build a swimming pool - £80,896

Single storey extension - £52,920

Side return extension - £40,330

Install an RSJ - £2,096

Outbuilding - £9,896

Build a Mansard loft conversion - £51,896

Loft conversion - £32,775

Build a kitchen extension - £41,896

Hip to gable loft conversion - £41,896

Granny annexe - £86,896

Garden office - £9,896

Convert a Garage - £15,896

Garage - £18,396

Build a flat roof extension - £21,896

Build a dormer loft conversion - £41,896

Concrete foundations - £6,146

Convert a bungalow loft - £28,896

Convert a basement - £36,330