Olliver Ducket

Olliver Ducket is a folly built in the mid-18th century, likely designed by Daniel Garrett for Sir Conyers D'Arcy of Aske Hall. Constructed from ashlar limestone, it features two storeys, with a larger lower storey that supports a central tower. The building is designed in the Gothick style.

The lower storey has a plan consisting of two concentric circles, where the inner circle forms the lower stage of the tower. The outer circle is shaped like a Greek cross, with concave sides and convex ends. The walls are battered with splayed bases, and there are two small blocked oculi at the ends of each cross arm, along with another at a higher level on each side of the arms. In the north-west arm, which faces Aske Hall, there is a blocked pointed-arched doorway that has two steps leading up to it.

The upper tower is circular in plan and features four window openings with projecting sills and trefoiled heads, along with two small oculi between each pair of windows. A band runs below the crenellated parapet. While the interior is not accessible, steps leading up to the parapet walk are visible.