Wheal Drea Pumping Engine House

Wheal Drea Pumping Engine House is a beam engine house from a former tin mine, built around 1859. It is constructed of granite rubble, with dressed granite used for the bob wall. The building has a rectangular plan measuring approximately 7.6 by 5.2 metres and stands 12 metres high. The walls include remnants of the original boiler house, which measured about 11.5 by 3 metres, located to the northwest. The exterior features square-headed openings with twin granite lintels, while the interior has timber lintels. The upper section of the rear wall has collapsed, and the northwest corner stack is finished in brick. This structure is a largely complete example of a beam engine house, along with its original boiler house, making it a rare surviving example. It is part of a significant group with the former miners' dry located to the northwest.