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S & K Windows are here to help customers who need an Extension Builder in Yafforth. We offer a competitive rate to complete all your extension buil...
From £86,872
Darren Collin
Hi I'm darren
I'm a fully qualified time served joiner I have been doing it for 30 years and have been self employed for 12 years ...
From £86,832
David Evans
34years in the building trade small works to extensions vast experience of older buildings including listed properties
From £86,640
Lee Construction (LDG) Ltd is a trusted extension builder serving customers in Yafforth and the surrounding area. Contact us to today to get a comp...

Building a granny annexe ranges from £86,640 (Lee Construction (LDG) Ltd based in DL10) to £86,872 (Darren Collin Joinery based in DL7), 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 Yafforth by posting a job with HaMuch. We will send it to extension builders in Yafforth who will be happy to help you.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Granny Annexe near Darlington | £60 | £222 |
| Granny Annexe near Ingleby Barwick | £41 | £228 |
| Granny Annexe near Thornaby-on-Tees | £42 | £231 |
| Granny Annexe near Stockton-on-Tees | £41 | £228 |
| Granny Annexe near Middlesbrough | £43 | £236 |
| Granny Annexe near Newton Aycliffe | £38 | £225 |
| Granny Annexe near Billingham | £44 | £242 |
| Granny Annexe near Eston | £42 | £241 |
| Granny Annexe near Bishop Auckland | £38 | £248 |
| Granny Annexe near Harrogate | £29 | £225 |
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 - £17,266

Two storey extension - £87,649

Build a timber frame extension - £25,766

Build a swimming pool - £80,766

Single storey extension - £50,320

Side return extension - £38,868

Install an RSJ - £1,966

Outbuilding - £9,766

Build a Mansard loft conversion - £51,766

Loft conversion - £31,556

Build a kitchen extension - £41,766

Hip to gable loft conversion - £41,766

Granny annexe - £86,766

Garden office - £9,766

Convert a Garage - £15,766

Garage - £18,266

Build a flat roof extension - £21,766

Build a dormer loft conversion - £41,766

Concrete foundations - £6,016

Convert a bungalow loft - £28,766

Convert a basement - £34,868