During the 18th century, the castle was of interest to treasure hunters following rumours that gold and silver had been discovered at Buckton. The site was used as an anti-aircraft decoy site during the Second World War. Between 1996 and 2010, Buckton Castle was investigated by archaeologists as part of the Tameside Archaeology Survey, first by the University of Manchester Archaeological Unit then the University of Salford's Centre for Applied Archaeology.