Ollerton Watermill And Adjoining Mill House

Ollerton Watermill and the adjoining Mill House are a watermill and house built in the mid to late 18th century. They are constructed from brick and feature a steeply pitched plain tile roof with dentillated eaves, a single gable, and a single ridge stack. The buildings are two storeys high, plus a hopper floor in the garret, and consist of single and three bays.

The Mill House, located to the left, has glazing bar sash windows, while the right side features a 20th-century Classical doorcase with an overlight, and above it, another glazing bar sash window. The sashes have segmental heads. The mill has a slightly projecting central bay with a pair of doors framed by ashlar jambs and a concrete lintel. To the left of the mill, there is a casement window and a glazing bar sash beyond that. To the right, there is a blocked opening and the remains of a wheel arch. All openings on the mill also have segmental heads. Above the central doors, there is a close boarded door with an overlight, a glazing bar sash to the left, and another blocked opening to the right, all with segmental heads.

The rear elevation features an off-centre projecting gabled wing. To the left, there is a wheel opening with a segmental ashlar head, and to the right, a hatch with a segmental head. Beyond this, under an archway, there is a 19th-century casement and a 20th-century door. Further along, there is another 20th-century casement and door with a segmental head, and above, an off-centre casement with a segmental head, along with a 20th-century oriel window to the right. The rear wing has remnants of a single casement to the south and two close boarded doors with segmental heads to the east. The west gable features a door and a blocked opening to the right, with a single casement on each floor, all dating from the 20th century.

The mill contains a 19th-century king post roof with double tenoned purlins and retains complete workable mill machinery from the early 19th century, including a 12-foot diameter undershot wheel that drives three sets of stones and a windlass with a clasp arm wheel. Stone lifting and maintenance equipment is also present. The Mill House features chamfered span beams.