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Oystermouth Castle is a medieval fortification situated on the Gower Peninsula near Swansea in south Wales. The castle originated as a Norman motte-and-bailey fortress established in the early twelfth century, with substantial stone structures added during the thirteenth and fourteenth centuries, including a gatehouse, curtain walls, and residential buildings that reflect its development from purely military stronghold to a more comfortable residence. The site occupies a commanding coastal position that was strategically important for controlling access to Swansea Bay and the surrounding territories during the medieval period. Oystermouth represents one of the more substantial surviving castle ruins in south Wales and demonstrates the architectural evolution typical of Welsh border fortifications over several centuries of occupation and modification.
Oystermouth Castle is a scheduled monument protected by Cadw under reference GM007. View the official record →
Oystermouth Castle is a medieval fortification situated on the Gower Peninsula near Swansea in south Wales. It is designated a Scheduled Ancient Monument by Cadw under reference GM007.
Oystermouth Castle dates from the medieval period, and is classified as a castle. It is one of over 32,000 scheduled monuments protected across Britain.
Oystermouth 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 GM007.
Several scheduled monuments lie within 10 km, including St Peter's Chapel & Well, Caswell Bay (2.3 km), Clyne Wood Arsenic & Copper Works (2.4 km), Caswell Cliff Fort (2.7 km).
Aubrey generates in-depth historical research for any address in Britain — drawing on scheduled monument data, Domesday records, Roman heritage, PAS finds and medieval history to reveal the complete story of a landscape.
Research the area around Oystermouth Castle