Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
From £86,600
Craig Ross
Trusted and professional extension builder in PA14. Experienced in all extension buildering work and keeping within budget and on quote. CR Joiners...

Building a granny annexe ranges from £86,600 (CR Joiners based in G82) to £87,288 (GH BUILDING SERVICES LTD based in PA14), 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 PA14 by posting a job with HaMuch. We will send it to extension builders in PA14 who will be happy to help you.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Granny Annexe near Greenock | £30 | £243 |
| Granny Annexe near Port Glasgow | £32 | £250 |
| Granny Annexe near Dumbarton | £29 | £232 |
| Granny Annexe near Renfrewshire | £54 | £398 |
| Granny Annexe near Erskine | £34 | £258 |
| Granny Annexe near Johnstone | £52 | £381 |
| Granny Annexe near Clydebank | £35 | £265 |
| Granny Annexe near Renfrew | £35 | £264 |
| Granny Annexe near Paisley | £34 | £259 |
| Granny Annexe near Bearsden | £34 | £263 |
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 - £17,444

Two storey extension - £87,916

Build a timber frame extension - £25,944

Build a swimming pool - £80,944

Single storey extension - £53,880

Side return extension - £40,870

Install an RSJ - £2,144

Outbuilding - £9,944

Build a Mansard loft conversion - £51,944

Loft conversion - £33,225

Build a kitchen extension - £41,944

Hip to gable loft conversion - £41,944

Granny annexe - £86,944

Garden office - £9,944

Convert a Garage - £15,944

Garage - £18,444

Build a flat roof extension - £21,944

Build a dormer loft conversion - £41,944

Concrete foundations - £6,194

Convert a bungalow loft - £28,944

Convert a basement - £36,870