A late-eighteenth century former drying house serving the nearby watermill (nprn 24617). It has rubble walls and a roof of small slates and there are external stone steps to the first floor. The drying floor and kiln tiles have been removed from the building.
See: National Trust Vernacular Buildings Survey North Wales, August 1984.
B.A.Malaws, RCAHMW, 12 May 2008.