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ANDREW HUNTER BUILDING SERVICES is an established and experienced local extension builder in Northumberland. Please contact us for a free, no oblig...
Trusted and professional extension builder in Northumberland. Experienced in all extension buildering work and keeping within budget and on quote. ...
Need an Extension Builder in Northumberland? D TAIT BUILDING & PROP REPAIRS has been helping local clients (20 mile radius) with their extension bu...
From £87,168
Trusted and professional extension builder in Northumberland. Experienced in all extension buildering work and keeping within budget and on quote. ...

Building a granny annexe ranges from £86,808 (ANDREW HUNTER BUILDING SERVICES based in NE15) to £87,168 (B & R Building Services based in NE5), 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 Northumberland by posting a job with HaMuch. We will send it to extension builders in Northumberland who will be happy to help you.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Granny Annexe near Newcastle Upon Tyne | £33 | £236 |
| Granny Annexe near Longbenton | £34 | £234 |
| Granny Annexe near Cramlington | £36 | £256 |
| Granny Annexe near Gateshead | £33 | £236 |
| Granny Annexe near Consett | £33 | £241 |
| Granny Annexe near Stanley | £34 | £242 |
| Granny Annexe near Wallsend | £34 | £245 |
| Granny Annexe near Hebburn | £34 | £246 |
| Granny Annexe near Blyth | £42 | £288 |
| Granny Annexe near Whitley Bay | £38 | £268 |
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 - £17,480

Two storey extension - £87,970

Build a timber frame extension - £25,980

Build a swimming pool - £80,980

Single storey extension - £54,600

Side return extension - £41,275

Install an RSJ - £2,180

Outbuilding - £9,980

Build a Mansard loft conversion - £51,980

Loft conversion - £33,563

Build a kitchen extension - £41,980

Hip to gable loft conversion - £41,980

Granny annexe - £86,980

Garden office - £9,980

Convert a Garage - £15,980

Garage - £18,480

Build a flat roof extension - £21,980

Build a dormer loft conversion - £41,980

Concrete foundations - £6,230

Convert a bungalow loft - £28,980

Convert a basement - £37,275