TR1 Construction Ltd is a one-stop solution for all your extension buildering needs. Establish over 10 years ago and covering 20 miles around TR14 ...
Searle Construction are here to help customers who need an Extension Builder in TR14. We offer a competitive rate to complete all your extension b...
Trusted and professional extension builder in TR14. Experienced in all extension buildering work and keeping within budget and on quote. D & S Buil...
D.P.Hatley Building Services is an established extension buildering business in TR14. We come highly recommended and provide competitive quotes for...
SHORE FIX CONSTRUCTION LTD is an established extension buildering business in TR14. We come highly recommended and provide competitive quotes for y...
At peninsula refurbishment we provide a service from start to finish with minimal hassle for the customer. The workmanship is always high priority,...
Experienced extension builder ready to quote for your work. KEAST CONSTRUCTION LTD is the best extension builder in TR14. No obligation free quotes...
Elements Build SW Ltd is an established and experienced local extension builder in TR14. Please contact us for a free, no obligation quote and comp...
J C MITCHELL BUILDERS LTD is a trusted extension builder serving customers in TR14 and the surrounding area. Contact us to today to get a competiti...
Need to find an Extension Builder near you for all your extension buildering work?
KPK Builders Ltd provides a local, trusted extension bui...

Building a granny annexe ranges from £86,448 (SHORE FIX CONSTRUCTION LTD based in TR12) to £86,904 (Peninsula Property Refurbishments based in TR15), 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 TR14 by posting a job with HaMuch. We will send it to extension builders in TR14 who will be happy to help you.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Granny Annexe near Camborne | £28 | £196 |
| Granny Annexe near St Ives, Cornwall | £27 | £188 |
| Granny Annexe near Falmouth | £33 | £220 |
| Granny Annexe near Truro | £31 | £206 |
| Granny Annexe near Newquay | £32 | £230 |
| Granny Annexe near St Austell | £38 | £245 |
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 - £17,157

Two storey extension - £87,485

Build a timber frame extension - £25,657

Build a swimming pool - £80,657

Single storey extension - £48,136

Side return extension - £37,639

Install an RSJ - £1,857

Outbuilding - £9,657

Build a Mansard loft conversion - £51,657

Loft conversion - £30,533

Build a kitchen extension - £41,657

Hip to gable loft conversion - £41,657

Granny annexe - £86,657

Garden office - £9,657

Convert a Garage - £15,657

Garage - £18,157

Build a flat roof extension - £21,657

Build a dormer loft conversion - £41,657

Concrete foundations - £5,907

Convert a bungalow loft - £28,657

Convert a basement - £33,639