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

Trelissick West Portico


Trelissick, Cornwall


National Trust


Heritage Cornwall

Contract Value


Services Provided

Building Regulations
Contract Administration
Listed Building Consent
Planning Permission
Project Management
Site Investigation
Structural Design
Structural Drawing & Detailing
Structural Engineers Report
Structural Survey
Tendering Process

The Project

When part of the ceiling to the West Portico of the Grade II* listed Trelissick House fell down, we were asked to complete an investigation and appraisal of the structure.

It was identified that the steelwork supporting the masonry ring beam was corroded and the laths originally supporting the decorative mouldings had rotten away causing damage to the decorative stucco moulded finishes.

Any repair works would require careful and sympathetic consideration due to the historical significance and complexity of the friezes, triglyph’s, cornices and architraves, including protection of the Doric columns below; all whilst maintaining the main access to the main building in use by the public.

It was agreed with a Local Authority Conservation Officer to remove the decorative mouldings and the ceiling to install new structural steelwork. The decorative Stucco mouldings, finishes, and lath and plaster ceiling were replaced in using lime based materials, and the original architectural mouldings were replicated and replaced.