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Select your affordable Marazion extension builder
Phil Searle
Searle Construction are here to help customers who need an Extension Builder in Marazion. We offer a competitive rate to complete all your extensi...
From £51,440
We are a family run Construction Company based in Penzance. We employ over 10 skilled local trade professionals with 2 apprentices as well. Residen...
From £51,472
Trusted and professional extension builder in Marazion. Experienced in all extension buildering work and keeping within budget and on quote. Marks ...

Mansard loft conversions range from the cheapest installation of £51,440 (TGP Construction based in TR18) to the dearest of around £51,664 (Searle Construction based in TR19).
While these estimates give you a good idea how much you'll pay for a mansard loft conversion, the only way to get an accurate price is to get real quotes from real builders.
Get quotes to install a mansard loft conversion in Marazion by posting a job with HaMuch and we'll send it to extension builders in Marazion.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Build A Mansard Loft Conversion near St Ives, Cornwall | £27 | £188 |
| Build A Mansard Loft Conversion near Camborne | £28 | £196 |
| Build A Mansard Loft Conversion near Falmouth | £33 | £220 |
| Build A Mansard Loft Conversion near Truro | £31 | £206 |
| Build A Mansard Loft Conversion 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 - £17,025

Two storey extension - £87,288

Build a timber frame extension - £25,525

Build a swimming pool - £80,525

Single storey extension - £45,507

Side return extension - £36,160

Install an RSJ - £1,725

Outbuilding - £9,525

Build a Mansard loft conversion - £51,525

Loft conversion - £29,300

Build a kitchen extension - £41,525

Hip to gable loft conversion - £41,525

Granny annexe - £86,525

Garden office - £9,525

Convert a Garage - £15,525

Garage - £18,025

Build a flat roof extension - £21,525

Build a dormer loft conversion - £41,525

Concrete foundations - £5,775

Convert a bungalow loft - £28,525

Convert a basement - £32,160