The northernmost of a pair of house platforms located on ground falling to the west, and part of a larger grouping on Mynydd Machen (NPRN 15507). The platform terrace measures 9m long east by west by 6m wide, is cut back 1.5m deep and built out to 1.4m high. The slight inner scarp on the lip is not now visible due to overgrowth by heather and mosses.
Some damage has been caused by footpath/vehicle erosion.
See also 225681

David Leighton, RCAHMW, February 1999