Penallta Colliery Lamp Room

The Penallta Colliery Lamp Room is a single-storey building designed to store and distribute lamps for miners during their shifts. Built in the style of the other original colliery buildings, it features Pennant sandstone with red brick dressings, including end piers, stepped parapets, a cornice, a plinth, and dentilled window surrounds. The roof, which was originally covered with slates, now has a corrugated covering. The building is gabled and measures six bays long and three bays wide along the north-south axis.

The windows have segmental arched heads and were originally fitted with metal multi-pane frames, which are now blocked. On each side of the building, there are five small openings with painted brick surrounds that were used for passing lamps to waiting miners; these openings once had small metal doors, but none remain in place today. The interior of the building is divided into several offices and the main lamp room.