Waunllwyd is a ruined stone house at the end of a track, 3.5km south of Tirabad and west of a tributary stream of the Afon Dulas. It is probably 18th century and built of rubble in clay mortar, with well cut quoins and alternating headers and stretchers. There are traces of a lean-to against the chimney gable. The buildings were whitewashed with pitched slate roofs.
(Source: AJ Parkinson, August 1972, NMR Site Files).
Ian Archer, RCAHMW, 17th February 2005