This report describes the investigation in 2011 and 2015 of two groups of relict houses on an upland
common on the north flank of the Preseli hills in North Pembrokeshire. Their locations, along with
medieval records, provide strong indications that these were seasonal settlements. Excavation of one subrectangular building (House C) produced finds that included medieval pottery and a spindle whorl with
Romanesque decoration. A radiocarbon date of cal. AD 1030–1200 at 95.4% confidence from charcoal
in the hearth of this building provides the earliest firm date identified as yet for hafodydd (‘seasonal
settlements’) in Wale
