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Castell Cwm Aran is a medieval motte and bailey castle sited in Wales on bedrock composed of Wenlock rocks, an undifferentiated sequence of mudstone, siltstone and sandstone laid down during the Wenlock period. The castle consists of the characteristic earthwork elements typical of Norman castles constructed across Wales from the eleventh century onwards: a substantial mound or motte designed to support a timber or stone fortification, adjacent to a lower bailey or courtyard enclosed by banks and ditches. The underlying geology of mudstone and siltstone would have provided stable ground for the construction and maintenance of these defences, while the firmer sandstone beds offered stone suitable for building materials and repairs throughout the castle's occupation.
The monument's survival as earthworks reflects the common fate of smaller castles in the region that were superseded by more sophisticated stone fortifications or abandoned as military needs changed. Castell Cwm Aran is protected and recorded as a scheduled ancient monument by Cadw, the Welsh heritage organisation, under reference RD095, ensuring its preservation for archaeological study and public access as part of Wales's important heritage of medieval military architecture.
Castell Cwm Aran is a scheduled monument protected by Cadw under reference RD095. View the official record →
Castell Cwm Aran is a medieval motte and bailey castle sited in Wales on bedrock composed of Wenlock rocks, an undifferentiated sequence of mudstone, siltstone and sandstone laid down during the Wenlock period. It is designated a Scheduled Ancient Monument by Cadw under reference RD095.
Castell Cwm Aran dates from the medieval period, and is classified as a motte and bailey. It is one of over 32,000 scheduled monuments protected across the UK.
Castell Cwm Aran 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 RD095.
Several scheduled monuments lie within 10 km, including Coed-swydd enclosure (5.8 km), Great Rhos round barrow (6.5 km), Medieval Settlement on Penybont Common (6.7 km).
This page is just one thread. A full Aubrey report pulls together 13 strands of Castell Cwm Aran'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.
Castell Cwm Aran stands on Wenlock Rocks (Undifferentiated), bedrock that formed in the Wenlock. The rock here is mudstone, siltstone and sandstone.