Old Works Library at Aberdulais Falls Tinplate Works

The Old Works Library at Aberdulais Falls Tinplate Works is an outbuilding that has been converted into a tea room. It is constructed of whitewashed rubble stone and features a slate roof with a small red brick stack at the left end. The building is single-storey and consists of five bays, with a gabled porch at the center and two cambered-headed windows on each side, which have brick heads. The late 20th-century shutters are present, and there is a blocked window in the left end wall. The rear of the building has five cambered-headed four-pane sash windows with slate sills. A toilet block was added to the right end in the later 20th century. The interior has been altered for its current use as a tea room.