From £87,480
On time/ professional/ time served/trustworthy
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 £87,912
Trusted General Builders in Durham From small fixes to full renovations, Radici Construction delivers quality workmanship, clear communication,...
From £86,808
ANDREW HUNTER BUILDING SERVICES is an established and experienced local extension builder in Byker. Please contact us for a free, no obligation quo...
From £86,936
Building Craft Ltd is an established extension buildering business in Byker. We come highly recommended and provide competitive quotes for your wor...
From £86,984
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
From £86,808
Trusted and professional extension builder in Byker. Experienced in all extension buildering work and keeping within budget and on quote. DHB Build...
From £86,832
LJP Roofing are here to help customers who need an Extension Builder in Byker. We offer a competitive rate to complete all your extension builderin...
From £86,848
Trusted and professional extension builder in Byker. Experienced in all extension buildering work and keeping within budget and on quote. X7 Roofin...
From £87,096
Need an Extension Builder in Byker? D TAIT BUILDING & PROP REPAIRS has been helping local clients (20 mile radius) with their extension buildering ...

Building a granny annexe ranges from £86,808 (ANDREW HUNTER BUILDING SERVICES based in NE15) 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 Byker by posting a job with HaMuch. We will send it to extension builders in Byker 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 Hebburn | £34 | £246 |
| Granny Annexe near Gateshead | £33 | £236 |
| Granny Annexe near Wallsend | £34 | £245 |
| Granny Annexe near Longbenton | £34 | £234 |
| Granny Annexe near Jarrow | £34 | £262 |
| Granny Annexe near North Tyneside | £35 | £253 |
| Granny Annexe near South Tyneside | £34 | £261 |
| Granny Annexe near South Shields | £36 | £257 |
| Granny Annexe near Tynemouth | £36 | £257 |
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 - £17,570

Two storey extension - £88,104

Build a timber frame extension - £26,070

Build a swimming pool - £81,070

Single storey extension - £56,392

Side return extension - £42,283

Install an RSJ - £2,270

Outbuilding - £10,070

Build a Mansard loft conversion - £52,070

Loft conversion - £34,403

Build a kitchen extension - £42,070

Hip to gable loft conversion - £42,070

Granny annexe - £87,070

Garden office - £10,070

Convert a Garage - £16,070

Garage - £18,570

Build a flat roof extension - £22,070

Build a dormer loft conversion - £42,070

Concrete foundations - £6,320

Convert a bungalow loft - £29,070

Convert a basement - £38,283