Parts of the now modernised Plas Tregayan date from the seventeenth century. It is a three storey 'L' shaped building with attics. Internally it is plastered and has moulded architraves and late seventeenth century attic doors.

A reset oak panel, bearing the inscription HEB:DDVW:HEB?DDIM?A?DVW?A?DGON?DR 16/89, is said to have come from Plas Newydd, Llangollen.

J Hill, RCAHMW, 14 November 2003