From £86,344
CALLANDER JOINERS AND BUILDERS is an established and experienced local extension builder in FK21. Please contact us for a free, no obligation quote...
From £87,048
Trusted and professional extension builder in FK21. Experienced in all extension buildering work and keeping within budget and on quote. DEREK SAUN...

Building a granny annexe ranges from £86,344 (CALLANDER JOINERS AND BUILDERS based in FK17) to £87,048 (DEREK SAUNDERS BUILDERS based in PH7), 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 FK21 by posting a job with HaMuch. We will send it to extension builders in FK21 who will be happy to help you.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Granny Annexe near Stirling | £31 | £223 |
| Granny Annexe near Alloa | £33 | £229 |
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 - £17,196

Two storey extension - £87,544

Build a timber frame extension - £25,696

Build a swimming pool - £80,696

Single storey extension - £48,920

Side return extension - £38,080

Install an RSJ - £1,896

Outbuilding - £9,696

Build a Mansard loft conversion - £51,696

Loft conversion - £30,900

Build a kitchen extension - £41,696

Hip to gable loft conversion - £41,696

Granny annexe - £86,696

Garden office - £9,696

Convert a Garage - £15,696

Garage - £18,196

Build a flat roof extension - £21,696

Build a dormer loft conversion - £41,696

Concrete foundations - £5,946

Convert a bungalow loft - £28,696

Convert a basement - £34,080