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Cadair Fawr settlement is a medieval house platform located in Wales on bedrock composed of Dinantian rocks, a limestone formation interspersed with sandstone and argillaceous strata that dates to the Mississippian period. The underlying geology, typical of the Welsh uplands, provided both the raw materials and drainage characteristics that made this location suitable for habitation during the medieval period.
The platform itself represents the footprint of a medieval dwelling, where inhabitants would have adapted to the challenging topography of their surroundings. The construction of such platforms was a common practice in medieval Wales, where houses were built on levelled or partially cut ground to create stable foundations on sloping terrain. This building technique is evidenced across upland Welsh settlements from the medieval period.
The monument is protected by Cadw, the Welsh Historic Monuments service, under reference GM559, recognising its importance as evidence of medieval rural settlement patterns. Such house platforms contribute to our understanding of how medieval Welsh communities organised their domestic spaces and responded to local landscape conditions.
Cadair Fawr settlement is a scheduled monument protected by Cadw under reference GM559. View the official record →
Cadair Fawr settlement is a medieval house platform located in Wales on bedrock composed of Dinantian rocks, a limestone formation interspersed with sandstone and argillaceous strata that dates to the Mississippian period. It is designated a Scheduled Ancient Monument by Cadw under reference GM559.
Cadair Fawr settlement dates from the medieval period, and is classified as a house platform. It is one of over 32,000 scheduled monuments protected across the UK.
Cadair Fawr settlement is a Scheduled Ancient Monument, legally protected by Cadw — the body responsible for designating and safeguarding heritage sites in Wales. The official designation reference is GM559.
Several scheduled monuments lie within 10 km, including Gelli-Isaf Tramroad Bridge, Abernant Tramroad (8 km), Iron Tram Bridge, Robertstown (8.8 km), Tramroad East of Robert's Town Bridge, Aberdare (8.9 km).
This page is just one thread. A full Aubrey report pulls together 13 strands of Cadair Fawr settlement's history, each drawn from the record and mapped to the exact spot:
Every location is different. Not every section appears for every place, only what the historical record actually holds turns up in a report.
Cadair Fawr settlement stands on Dinantian Rocks (Undifferentiated), bedrock that formed in the Mississippian. The rock here is limestone with subordinate sandstone and argillaceous rocks.