Plas-yn-Iâl

Plas-yn-Iâl is a house comprising two sections of roughly equal size, with an older, square block to the east. The older section is rendered and features a hipped slate roof with moulded stone eaves, along with rendered chimneys. Dormer windows are present on the north side. The main, east-facing elevation has an asymmetrical three-window front, offset to the left. The upper openings consist of a blind opening at the left, painted to resemble a 16-pane window, and two twelve-pane sash windows. Below, there is a 16-pane sash window on the left and a tripartite window on the right. This tripartite window features a twelve-pane pair of opening sashes set between mullions, with fixed sashes on either side. The doorway has a moulded frame and a partly glazed five-panel door. A marble heraldic shield, formerly positioned above the door, has been moved to the interior of the later section. The south elevation presents asymmetrical small-pane glazing across three levels. The north elevation exhibits a 16-pane sash window above and a tripartite window similar to that on the east elevation (a twelve-pane pair of opening sashes between mullions with fixed sashes each side) at the right; a blind opening painted to resemble a 16-pane window is at the left above, and another blind window painted to resemble a tripartite 16-pane window with side lights is below. The west elevation of the older block partially overlooks the newer section and includes a large, stepped external chimney.

The west block, dating from approximately 1870, displays a very irregular design. Its south side is of exposed stone, while the west gable and rear are rendered. A single-story lean-to addition extends from the north side, and the roof is slate. The main, south-facing elevation of this block is arranged in three bays over three stories, with windows breaking the eaves line as dormers. It features 16-pane and 8-pane sash windows.

An inspection in 1996 revealed that the interior of the older east block retains original cornices, fireplaces, panelled doors, and a good staircase. Notably, the entrance hall has an arch leading to the staircase hall, where a wooden staircase ascends to attic level, featuring balusters in the form of fluted pillars and panelling to the walls. A door provides access to the cellar. The drawing room, located to the right (front) of the entrance hall, also has an enriched cornice, a ceiling rose, and a marble fireplace. The dining room, at the rear, features an enriched cornice on its ceiling and beams, a small plaster ceiling rose, and a large arched fireplace. The first floor has simpler cornices, panelled doors, and early 19th-century fireplaces.