From £87,912
Trusted General Builders in Durham From small fixes to full renovations, Radici Construction delivers quality workmanship, clear communication,...
From £86,920
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
2 reviews
From £87,264
30 years experience In building . Plastering and colour renders
"Totally unreliable, takes your money and doesn't finish the job." - NORTH EAST,reviewed 04/10/17, L S
From £86,760
Trusted and professional extension builder in DL13. Experienced in all extension buildering work and keeping within budget and on quote. D & G Buil...
From £87,104
RAINTON CONSTRUCTION LTD is an established and experienced local extension builder in DL13. Please contact us for a free, no obligation quote and c...
From £87,208
Need an Extension Builder in DL13? ANDERSON & METCALF BUILDERS has been helping local clients (20 mile radius) with their extension buildering jobs...
From £86,904
WILKINSON BUILDERS is a trusted extension builder serving customers in DL13 and the surrounding area. Contact us to today to get a competitive quot...
From £86,632
Partek Site Services is an established and experienced local extension builder in DL13. Please contact us for a free, no obligation quote and compe...
From £86,896
S & A W Joinery & Construction is a trusted extension builder serving customers in DL13 and the surrounding area. Contact us to today to get a comp...

Building a granny annexe ranges from £86,632 (Partek Site Services based in DL2) to £87,912 (Radici Construction North East Ltd based in DH1), 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 DL13 by posting a job with HaMuch. We will send it to extension builders in DL13 who will be happy to help you.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Granny Annexe near Consett | £33 | £241 |
| Granny Annexe near Bishop Auckland | £39 | £247 |
| Granny Annexe near Spennymoor | £38 | £248 |
| Granny Annexe near Stanley | £34 | £242 |
| Granny Annexe near Durham | £47 | £267 |
| Granny Annexe near Newton Aycliffe | £39 | £227 |
| Granny Annexe near Chester-le-Street | £35 | £242 |
| Granny Annexe near Darlington | £60 | £222 |
| Granny Annexe near Washington | £33 | £254 |
| Granny Annexe near Gateshead | £33 | £236 |
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 - £17,560

Two storey extension - £88,090

Build a timber frame extension - £26,060

Build a swimming pool - £81,060

Single storey extension - £56,200

Side return extension - £42,175

Install an RSJ - £2,260

Outbuilding - £10,060

Build a Mansard loft conversion - £52,060

Loft conversion - £34,313

Build a kitchen extension - £42,060

Hip to gable loft conversion - £42,060

Granny annexe - £87,060

Garden office - £10,060

Convert a Garage - £16,060

Garage - £18,560

Build a flat roof extension - £22,060

Build a dormer loft conversion - £42,060

Concrete foundations - £6,310

Convert a bungalow loft - £29,060

Convert a basement - £38,175