Glanbran Arms Inn including former barn range to left.

The Glanbran Arms Inn, which was formerly a farmhouse, includes an attached barn and a lofted cart-house range, all facing into a rear farmyard. The barn is located to the left and is positioned at right angles to the main building, connected by a short, curving single-storey range. The cart-shed is situated to the right. The structure is built of whitewashed rubble stone with slate roofs, featuring stone small end stacks and overhanging gable verges.

The main range is two-storey with three windows, fitted with horned 16-pane sash windows and a central door. It has stone voussoirs, stone sills, and stone hoodmoulds over the ground floor openings. There are added flanking ranges, with the one on the right being slightly lower. This lofted cart-shed or coach-house has two loft 12-pane sash windows that break the eaves in stone gables, along with a brick end-wall lean-to.

To the left of the inn, there is a curving single-storey section with a roof that has four cants. This section features one small 4-pane sash window facing the front and an inserted 16-pane sash window on the curve. It connects to the former barn, which is at right angles to the main front. The barn is also whitewashed and has a blocked door with four inserted 20th-century windows to the right.

On the rear elevations facing the farmyard, the house has an outshut with 20th-century windows. The cart-shed features three cambered-headed entries with stone voussoirs and square piers, along with one small loft window to the right. The barn retains its original full-height doorway with a timber lintel and two loops. The front ground floor has been altered, with a fireplace located on the back wall of the left room. Inside the barn, there are pine pegged tie-beam and collar trusses.