Plas Colwyn

Plas Colwyn is a two-storey, three-bay Regency villa, featuring storeyed lean-to pavilion wings that are recessed to the sides. The building is constructed from coursed, rough-dressed stone blocks, which were originally stuccoed, and it has a shallow-pitched, hipped roof covered with graded slates. The eaves are deep and bracketed, and there are plain end chimneys with weather coursing.

The facade is symmetrical, with a central entrance leading to the raised ground floor via eight slate steps. The entrance features a modern six-panel door, with the upper four panels being glazed, and it is topped by a rectangular fanlight with decorative intersecting glazing bars. The original 12-pane unhorned sash windows are still present on both floors, each with projecting slate sills; the first-floor windows are slightly smaller and set under the eaves. Narrow, horizontal basement lights flank the entrance, although these have modern glazing.

The pavilion wings on either side are two low storeys tall and have lean-to slate roofs. The right wing has a modern part-glazed entrance with an original 16-pane sash window above it, while the left wing features a similar sash window on the ground floor and a later fixed 8-pane window above. This side also has a modern window under the eaves on its left return and includes a small single-storey lean-to addition at the rear angle between it and the main block.

The interior was not inspected during the survey.