Pen-y-Nant

This convalescent home, built in the 18th century, is constructed of red brick in a stretcher bond pattern, with sandstone ashlar dressings sourced from the Berwig quarry in Minera. The roof is slate, with deep, flat eaves. The building comprises two parallel ranges designed in a neo-Georgian style. The north-west front is subtly asymmetrical, featuring a projecting stone centrepiece flanked by wings with slightly varied window arrangements. The asymmetrical design is emphasized by terminal crosswings that are matched in appearance and have steeply pitched, hipped roofs with bell-cast or outswept eaves. A tooled stone plinth runs around the base, and an ashlar band extends across the façade. Flush quoins mark the corners of the crosswings. The windows are white-painted sashes, generally with 12 panes; ground-floor windows have cambered heads with ashlar keystones, while upper-floor windows are placed under the eaves. Stone sills are present throughout. Brick chimneys, substantial in size and with corbelled top stages, are positioned on the roof slopes. The stone centrepiece features a deep timber pediment, a first-floor 12-pane sash with a moulded sill that serves as the top of a framed plaque, and a particularly fine doorcase. The doorcase features a moulded architrave that curves upwards towards a triple keystone, and a projecting cornice supported by long consoles; a further cornice projects from the raised band. The front door is fielded with 6 panels and lead glazing bars to the overlight. The wings vary slightly on either side. The wing to the right has two ground-floor sashes, while above on the left is a 4-12-4-pane triple sash and a single sash. The wing on the left has three windows on each floor, with similar sashes, though the ground floor right features a triple sash. The crosswings each have one first-floor triple sash, and two ground-floor 15-pane sashes, which are taller than those in the wings.

A service range located to the left is of a similar scale and detail, but generally lacks the ashlar dressings except for sills and ground-floor keystones. Its layout consists of a three-window range, followed by a crosswing projecting further than the others, topped with a similar bellcast hipped roof. A single-window range is visible on the south-west side wall and the north-west end wall. The north-east side has a slightly projecting crosswing to the left, with one sash above two sashes, while the right side has just one ground-floor sash.

The garden front features a long main range with a 1-1-8-1-1 window range on the first floor, consisting of generally 12-pane sashes, but with triple sashes in the penultimate bays, which project slightly and have bellcast hipped roofs. The ground floor is a long lean-to structure composed of two verandas with a porch between. The porch has a front sash window with a 5-15-5-pane arrangement and half-glazed doors leading to each veranda. The verandas contain three pairs of timber posts and 15-pane sashes, with brick enclosures and 15-pane sashes at each end. Set back at each end and linked by a narrow recessed bay containing a half-glazed door and a first-floor roundel window, are two-window gabled crosswings, which are plainer in detail.