From £87,480
On time/ professional/ time served/trustworthy
From £86,784
Trusted and professional extension builder in Blyth. Experienced in all extension buildering work and keeping within budget and on quote. DGS Prope...
From £87,480
Arrowhead Construction is a trusted extension builder serving customers in Blyth and the surrounding area. Contact us to today to get a competitive...
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 £86,808
ANDREW HUNTER BUILDING SERVICES is an established and experienced local extension builder in Blyth. Please contact us for a free, no obligation quo...
From £86,936
Building Craft Ltd is an established extension buildering business in Blyth. 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 £86,848
Trusted and professional extension builder in Blyth. Experienced in all extension buildering work and keeping within budget and on quote. X7 Roofin...
From £87,096
Need an Extension Builder in Blyth? D TAIT BUILDING & PROP REPAIRS has been helping local clients (20 mile radius) with their extension buildering ...
From £87,008
Need to find an Extension Builder near you for all your extension buildering work?
TK Builders provides a local, trusted extension builderi...

Building a granny annexe ranges from £86,784 (DGS Property Services based in NE23) to £87,480 (Key Building Solutions based in NE9), 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 Blyth by posting a job with HaMuch. We will send it to extension builders in Blyth who will be happy to help you.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Granny Annexe near Blyth | £42 | £288 |
| Granny Annexe near Cramlington | £36 | £256 |
| Granny Annexe near Ashington | £44 | £280 |
| Granny Annexe near Whitley Bay | £38 | £268 |
| Granny Annexe near North Tyneside | £35 | £253 |
| Granny Annexe near Tynemouth | £36 | £257 |
| Granny Annexe near Longbenton | £34 | £234 |
| Granny Annexe near Wallsend | £34 | £245 |
| Granny Annexe near South Shields | £36 | £257 |
| Granny Annexe near Hebburn | £34 | £246 |
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 - £17,542

Two storey extension - £88,062

Build a timber frame extension - £26,042

Build a swimming pool - £81,042

Single storey extension - £55,832

Side return extension - £41,968

Install an RSJ - £2,242

Outbuilding - £10,042

Build a Mansard loft conversion - £52,042

Loft conversion - £34,140

Build a kitchen extension - £42,042

Hip to gable loft conversion - £42,042

Granny annexe - £87,042

Garden office - £10,042

Convert a Garage - £16,042

Garage - £18,542

Build a flat roof extension - £22,042

Build a dormer loft conversion - £42,042

Concrete foundations - £6,292

Convert a bungalow loft - £29,042

Convert a basement - £37,968