Grove Colliery Cornish Beam Engine House

The Grove Colliery Cornish Beam Engine House is a large structure, measuring about 7 meters by 10 meters, built in the Cornish style. It faces north towards the location of its pit, which is now capped. Although the building is currently roofless, it remains intact to its full height. The exterior walls are faced with squared limestone in irregular courses, while the backing is made of local sandstone. The bob-wall, which is approximately 1.65 meters thick, is constructed entirely of limestone. Above the level where the beam bears, the masonry shifts to larger courses.

The front features a tall arched opening, and the rear has a lower but wider archway. Both arches are plain and circular in shape. The side walls contain smaller brick-arched openings. Internally, there are apertures for girders in the north and south walls, as well as high-level window openings on the sides and rear, which are arched with backing lintels and have splayed sides.

Inside, the building has been plastered, but some areas of finished stonework suggest that it was originally designed to showcase fair-faced masonry.