Castles · South Wales
Oystermouth Castle
Also known as: Castell Ystum Llwynarth
In or near Swansea.
Oystermouth Castle — Grade I listed castle in Mumbles, Swansea, Wales, UK.

Wikimedia Commons contributors — see linked file page for photographer and licence licence
Plan your visit
- Typical visit
- 1.5 h–3 h
- Nearest railway station
- Swansea · 6.9 km
- Family-friendly
- Limited wheelchair access
Getting there & planning your visit
To visit Oystermouth Castle, the nearest railway station is Swansea, located approximately 6.9 km away. The postcode for sat-nav is SA3 5TA. Accessibility is limited for wheelchair users.
About
Oystermouth Castle is a castle in the United Kingdom — fortified architecture from the medieval, Tudor, or Victorian-revival period. Heritage designation: scheduled monument. Wikidata describes it as: "Grade I listed castle in Mumbles, Swansea, Wales, UK". Coordinates: 51.5771°, -4.0026°.
Photo gallery
Heritage listing
Oystermouth Castle (Welsh: Castell Ystum Llwynarth) is a Norman stone castle in Wales, overlooking Swansea Bay on the east side of the Gower Peninsula in the village of Mumbles.
From Cadw under OGL v3.
From the Wikipedia article
Oystermouth Castle (Welsh: Castell Ystum Llwynarth) is a Norman stone castle in Wales, overlooking Swansea Bay on the east side of the Gower Peninsula in the village of Mumbles.
Excerpt from Wikipedia under CC BY-SA 4.0. See the source article linked in Sources below.
Background
Description
On either side of the entrance gate the walls curve inward, showing that at one time there were supposed to be two round towers built into the gatehouse. It is unknown whether these were ever built. The chapel (on the second floor of the chapel block) has 14th century traceried windows. According to local tradition the chapel was built under the direction of Aline de Mowbray. Remnants of an ornate medieval painting dating back to the 14th century have recently been found in the chapel. The surviving painting is thought to be over 700 years old and was spotted during conservation work in the historic attraction's chapel area. Exposure to the elements has taken its toll on the painting over…
Sourced from Wikipedia under CC BY-SA 4.0.
- Coordinates
- 51.5771, -4.0026
- District
- Swansea
- Parish
- Mumbles
- Postcode
- SA3 5TA
- Parliamentary constituency
- Gower
- Nearest railway station
- Swansea — 6.9 km
- Opening
- Sa-Su 11:00-17:00; Apr 1-Sep 30 Mo-Su 11:00-17:00
- Official site
- oystermouthcastle.wordpress.com
Sources
- wikidata: Q7116379 (CC0)
- wikipedia: Oystermouth Castle (CC BY-SA 4.0)
- commons: Oystermouth Castle - geograph.org.uk - 292767.jpg (CC BY-SA 4.0)
Other places nearby

Tivoli Picture Theatre
Theatres · 0.2 km

Tabernacle United Reformed Church
Historic churches · 0.2 km

Oystermouth
Villages · 0.3 km

Mumbles
Villages · 0.3 km

La Charrette
Theatres · 0.3 km

Grey Dog Gallery
Galleries · 0.4 km

Croeso Lounge
Restaurants · 0.4 km

Silverwood Castle, Oystermouth
Literary houses · 0.5 km

Oystermouth Cemetery
Cemeteries · 0.5 km

All Saints' Church
Historic churches · 0.5 km

Nishimura Ltd
Restaurants · 0.6 km

Mumbles Beach
Beaches · 0.8 km
Nearby
Theatres · South Wales
Tivoli Picture Theatre
Tivoli Picture Theatre in Wales South, United Kingdom.
Historic churches · South Wales
Tabernacle United Reformed Church
Tabernacle United Reformed Church — Grade II listed building-listed church in wales-south, United Kingdom.
📷 5Galleries · South Wales
Grey Dog Gallery
Grey Dog Gallery — a gallery in wales-south, United Kingdom.
Where to eat & stay near Oystermouth Castle
Places to stay
Hotels · South Wales
The Mumbles (Carlton) Hotel
The Mumbles (Carlton) Hotel — a hotel in wales south.
Hostels · South Wales
Dan Y Coed House Activity Centre
Dan Y Coed House Activity Centre — a hostel in wales south.
Caravan parks · South Wales
Blackhills Caravan Park
Blackhills Caravan Park — a caravan park in wales south.
Hotels · South Wales
Swansea Marriott Hotel
Swansea Marriott Hotel — a hotel in wales south.
Caravan parks · South Wales
Fairfield Caravan Park
Fairfield Caravan Park — a caravan park in wales south.
Places to eat & drink
📷 3Restaurants · South Wales
Croeso Lounge
Croeso Lounge — a restaurant in wales south.
📷 3Restaurants · South Wales
Nishimura Ltd
Nishimura Ltd — a restaurant in wales south.
📷 3Restaurants · South Wales
Mermaid Cafe Bar and Restaurant
Mermaid Cafe Bar and Restaurant — a restaurant in wales south.
Restaurants · South Wales
The Lighthouse Bar & Kitchen
The Lighthouse Bar & Kitchen — a restaurant in wales south.
Restaurants · South Wales
Bangkok Thai Fusion and Bar
Bangkok Thai Fusion and Bar — a restaurant in wales south.
More castles in this region
📷 5Castles · South Wales
Caerphilly Castle
Caerphilly Castle — castle in Caerphilly, Wales.
📷 3Castles · South Wales
Abergavenny Castle
Abergavenny Castle — Grade I listed building in Abergavenny. Ruined castle in the market town of Abergavenny, Monmouthshire, Wales.
📷 3
📷 3Castles · South Wales
Allt y Gaer
Allt y Gaer — Site of Special Scientific Interest in Wales.
Frequently asked questions
- Where is Oystermouth Castle?
- Oystermouth Castle is in South Wales, United Kingdom (postcode SA3 5TA), in the parish of Mumbles.
- What is Oystermouth Castle?
- Oystermouth Castle — Grade I listed castle in Mumbles, Swansea, Wales, UK.
- How do I get to Oystermouth Castle?
- The nearest railway station is Swansea, about 6.9 km away. Drivers can use postcode SA3 5TA.
- Is Oystermouth Castle a listed building?
- Oystermouth Castle is officially recognised as scheduled monument listed.
- Does Oystermouth Castle charge admission?
- Oystermouth Castle typically charges admission. Check the official site for current ticket prices and opening hours.
- How do I get to Oystermouth Castle?
- The nearest railway station is Swansea, about 6.9 km away. Drivers can navigate to postcode SA3 5TA.