Caersws Railway Station, with Stationmaster's House

Caersws Railway Station, with its attached two-storey stationmaster's house, is a single-storey station located at the northwest end behind a long platform. The building features snecked bullnosed rubble construction, a grouted slate roof, and red brick chimneys, one of which has been cut down. The gable ends have ornate cusped bargeboards, most of which still retain their finials and pendants. The station has a four-bay platform front that is set back under a canopied roof, with cross-frame windows and an entrance offset to the left, next to a missing clock face. The painted architraves include coats of arms. There is an additional doorway that steps down at the extreme right end, adjacent to a narrow link between the station and the signal box.

The front of the 'L'-plan stationmaster's house features an advanced one-window gable end and a similar gable treatment on the dormer hood over the first-floor window, which is set back to the left. A lean-to boarded porch with small pane glazing is integrated into the angle with the cross range. There is also a walled yard and outhouse at the left end of the property.

Nearby, approximately 250 meters to the south, there is an upper quadrant LMS pattern signal gantry, and about 85 meters to the north, a GWR pattern gantry with home and distant lower-quadrant semaphores.

The station retains its original character, including a panelled partition, a four-panel door, and a round-headed ticket window in the waiting room. The waiting room also features an axial cast iron fire grate with a surround, and an ovolo-moulded stop-chamfered beam above. Additionally, the waiting room retains its original stout wooden armed benches.