A two celled longhouse, aligned north to south, and located in a large field to the south of Bwylch-y-gaer. It measures approximately 12m long by 5m wide, with walls a maximum of 1m wide by up to 0.7m high. Only the foundation courses survive, which are constructed with medium to large, sub-rounded stones. There are no associated structures, and the plan is not fully defined. Peter Schofield, Oxford Archaeology North, 21st June 2004.