Briton Ferry Ironworks Engine House

The Briton Ferry Ironworks Engine House is a tall, three-storey building made of concrete blocks on a steel frame, topped with a flat roof. The narrow northern side is open-ended due to the demolition of an earlier engine house that was connected to this structure.

On the eastern wall, which has six bays, the openings are set between plain pilasters, though some of these pilasters are now partly missing on the right side. The lower storey features a segmental-headed doorway that is offset to the right. Above this, the middle storey has tall round-headed windows that are all blocked, but some iron-frame radial glazing is still partially visible. The upper storey has shorter windows that are similar in style. Between the middle and upper storeys, there are four infilled and truncated cast iron pipes of varying diameters.

The western wall has similar windows on the middle and upper storeys. The southern wall consists of three bays, also defined by plain pilasters. The central bay contains a doorway with a moulded lintel, and the windows above are similar to those on the other walls. Projecting I-section beams are located at the upper left and right corners.

The building has not been inspected.