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Deganwy Castle is a medieval fortification situated on the Conwy Peninsula in north Wales, commanding views over the Conwy Estuary and Deganwy village. The castle consists of the fragmentary remains of stone towers and walls, representing the work of multiple building phases from the thirteenth century onwards. Originally established as a Welsh stronghold, the site was captured and rebuilt by Edward I's forces during the conquest of Gwynedd in the late thirteenth century, after which it served as an English garrison castle. The visible remains today include substantial portions of masonry from the medieval period, though erosion and later quarrying have significantly compromised the structure, leaving it as a prominent archaeological monument recording an important phase of medieval military architecture and Welsh-English conflict.
Deganwy Castle is a scheduled monument protected by Cadw under reference CN016. View the official record →
Deganwy Castle is a medieval fortification situated on the Conwy Peninsula in north Wales, commanding views over the Conwy Estuary and Deganwy village. It is designated a Scheduled Ancient Monument by Cadw under reference CN016.
Deganwy Castle dates from the medieval period, and is classified as a castle. It is one of over 32,000 scheduled monuments protected across the UK.
Deganwy Castle 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 CN016.
Several scheduled monuments lie within 10 km, including Maen Penddu (7.2 km), Cefn Maen Amor stone circle (7.2 km), Cefn Maen Amor cairn (7.2 km).
This page is just one thread. A full Aubrey report pulls together 13 strands of Deganwy Castle'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.
Deganwy Castle stands on Unnamed Extrusive Rocks, Ordovician, bedrock that formed in the Ordovician. The rock here is felsic tuff.