Plas-y-Brenin, National Recreation Centre (formerly the Royal Hotel).

This is a late Georgian storeyed inn of an irregular plan, originally built in the early 19th century, with later additions in the later 19th century. The front of the building is stuccoed, while the side and rear elevations are slate-hung. The building is comprised of six distinct ranges. The three ranges on the right were built in the early 19th century, and the three ranges on the left were added later in the 19th century. The far-right section features a two-story, hipped roof block with a symmetrical three-bay range adjoining and set slightly lower to the left. This section has recessed 12-pane sash windows on the ground floor and 9-pane windows on the first floor; the ground floor windows on the right section are set within pointed-arched recesses. The central entrance is located in the 3-bay range and is sheltered by a late 19th-century, hipped-roof porch along with a partially glazed door. Adjoining this to the left and at a slightly lower level is a four-bay section with a gabled central entrance bay, flanked by single-bay wings. A wide, projecting, storeyed, and canted bay is situated to the left. This section’s ground floor windows are 12-pane sashes, while the upper floor incorporates 6-pane windows. The canted bay has blind windows on the front. A porch is present in the centre, similar to the previous one, but wider, with flanking segmental openings leading to a segmentally-arched entrance. The building steps up to join three later 19th-century blocks on the left, with the outer blocks being three stories high. The far-left section has an elevated ground floor above a basement. The right section of these later additions features an advanced central bay with a plain ground-floor entrance, and three asymmetrical gables on the upper floor; the roof is hipped to the right, with a modern extension adjoining the left side. Further 12, 9, 6, and 4-pane recessed sashes are also present.

The rear elevation shares a similar style with hipped roofs and features both blind and actual intersecting wooden Gothick windows to a central canted bay and flanking ranges.

Inside, a plain single-flight staircase leads to a hall, now partially enclosed. It is characterized by stick balusters, a swept pine rail, and columnar newel posts. A small gallery above has a glazed top light. A depressed-arched opening on the right of the hall includes a fanlight and modern doors. This opening leads to a corridor with panelled window reveals and a finely painted coat of arms on canvas, mounted on the left wall. The inscription below, written in a contemporary hand, reads: “His grace the Duke of Richmond, September 6th, 1807.” Another similar staircase, though a narrow well type, is located at the end of the corridor, concealed behind modern doors. A large dining room features a ribbed, decorative plaster ceiling and plaster-panelled walls, embellished with Adamesque decorative motifs, all dating to the early 20th century.