United Hills Engine House (At SW 700472)

The United Hills Engine House is a disused pumping beam engine house, built around the mid to late 19th century. It features a granite ashlar front, with the rest of the structure made from rubble and granite dressings. Most openings have timber lintels, and the upper stage of the chimney is constructed from brick. The building has a rectangular plan and includes a round chimney that is positioned at the rear right-hand corner. There is no surviving machinery, wooden floors, or roof structure.

The engine house stands three storeys tall, with its elevations largely unaltered except for a blocked doorway on the offside wall. The front wall has a tall central round-headed doorway, while the rear gable end wall, which is partly fallen, has a central round-headed cylinder doorway and a window opening above it. The right-hand wall has five irregularly placed openings, including a doorway on the left, with the upper left portion of the wall also partly fallen. The left-hand wall features a doorway on the right and a small opening high up on the left. The interior has not been inspected.