James Lockyer Associates Ltd
Oakland Mews, Liskeard
CornwallPL14 3UX
01579 344771
Finished project
The Finished Building
Bridges and Walkways
Completed project
During construction
Underpinning reinforcement
Reinforcement for new patio
Completed Project
View from the new balcony
Completed works
Completed project
Completed project

Repair Scheduled Monument


Porthleven, Cornwall


National Trust


Roger McLean Stonemasons

Contract Value


Services Provided

Project Management
Scheduled Ancient Monument
Structural Design
Structural Drawing & Detailing
Structural Engineers Report
Structural Survey

The Project

The cliffside engine houses and stacks that form the remains of Wheal Trewavas are one of the most spectacular examples of Cornwall’s mining heritage. The 19th Century mine workings are Scheduled Monuments as well as being an important nesting site. However, their exposed location and historic nature also mean that repair and maintenance works are crucial if these structures are to be maintained for future generations.

James Lockyer Associates provided structural support to the design team, and the project involved working closely with a number of key stakeholders, including the National Trust, English Heritage, the RSPB and the local community.

  • Repair works in the snow
  • Historic damage
  • Wheal Trewarvas
  • Stonework repairs