More than �1m has been invested in the project

The Engine House at the former mining site at Wheal Kitty, near St Agnes, has been turned into business units.

The businesses on the site range from surf board design and website development, to engineering research and personal training.

More than �1m has been invested in transforming the listed Engine House.

The project was funded by the South West Regional Development Authority (RDA), Objective One and the Isles of Scilly and Carrick District Council.

Stephen Bohane, from the RDA, said: "This project demonstrates the role the RDA is playing in delivering high quality workspace in Cornwall, especially in areas where the costs of development would be prohibitive for a private developer."