Phil Searle
Searle Construction are here to help customers who need an Extension Builder in TR18. We offer a competitive rate to complete all your extension b...
From £9,440
We are a family run Construction Company based in Penzance. We employ over 10 skilled local trade professionals with 2 apprentices as well. Residen...

Outbuilding costs in TR18 range from the cheapest of £9,440 (TGP Construction based in TR18) to the dearest of £9,664 (Searle Construction based in TR19), but these are just estimates.
Comparing extension builders estimates for building an outbuilding gives you an idea of who will be better value, but the best way to compare costs is to get actual quotes.
Get rates and quotes to build an outbuilding in TR18 by posting a job with HaMuch and we will send it to extension builders.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Outbuilding near St Ives, Cornwall | £27 | £188 |
| Outbuilding near Camborne | £28 | £196 |
| Outbuilding near Falmouth | £33 | £220 |
| Outbuilding near Truro | £31 | £206 |
| Outbuilding near Newquay | £32 | £230 |
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 - £17,052

Two storey extension - £87,328

Build a timber frame extension - £25,552

Build a swimming pool - £80,552

Single storey extension - £46,040

Side return extension - £36,460

Install an RSJ - £1,752

Outbuilding - £9,552

Build a Mansard loft conversion - £51,552

Loft conversion - £29,550

Build a kitchen extension - £41,552

Hip to gable loft conversion - £41,552

Granny annexe - £86,552

Garden office - £9,552

Convert a Garage - £15,552

Garage - £18,052

Build a flat roof extension - £21,552

Build a dormer loft conversion - £41,552

Concrete foundations - £5,802

Convert a bungalow loft - £28,552

Convert a basement - £32,460