From £87,096
Need an Extension Builder in Northumberland? D TAIT BUILDING & PROP REPAIRS has been helping local clients (20 mile radius) with their extension bu...
From £86,808
ANDREW HUNTER BUILDING SERVICES is an established and experienced local extension builder in Northumberland. Please contact us for a free, no oblig...
From £87,168
Trusted and professional extension builder in Northumberland. Experienced in all extension buildering work and keeping within budget and on quote. ...
From £86,848
Trusted and professional extension builder in Northumberland. Experienced in all extension buildering work and keeping within budget and on quote. ...
From £86,848
JT Roofing is an established and experienced local extension builder in Northumberland. Please contact us for a free, no obligation quote and compe...
From £86,720
Relax... you have found a reliable extension builder in Northumberland. J3 BUILDING SOLUTIONS LTD is a friendly and reliable company based in North...
From £86,968
Trusted and professional extension builder in Northumberland. Experienced in all extension buildering work and keeping within budget and on quote. ...
From £86,888
Relax... you have found a reliable extension builder in Northumberland. SB Building Solutions is a friendly and reliable company based in Northumbe...
From £86,992
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
From £86,936
D H P Builders is an established extension buildering business in Northumberland. We come highly recommended and provide competitive quotes for you...

Building a granny annexe ranges from £86,720 (J3 BUILDING SOLUTIONS LTD based in NE61) 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 | £235 |
| Granny Annexe near Longbenton | £33 | £233 |
| 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 - £17,427

Two storey extension - £87,891

Build a timber frame extension - £25,927

Build a swimming pool - £80,927

Single storey extension - £53,544

Side return extension - £40,681

Install an RSJ - £2,127

Outbuilding - £9,927

Build a Mansard loft conversion - £51,927

Loft conversion - £33,068

Build a kitchen extension - £41,927

Hip to gable loft conversion - £41,927

Granny annexe - £86,927

Garden office - £9,927

Convert a Garage - £15,927

Garage - £18,427

Build a flat roof extension - £21,927

Build a dormer loft conversion - £41,927

Concrete foundations - £6,177

Convert a bungalow loft - £28,927

Convert a basement - £36,681