Pennard Castle is a Grade II* listed building in the Swansea local planning authority area, Wales. First listed on 3 June 1964. Castle.
Pennard Castle
- WRENN ID
- tenth-glass-dew
- Grade
- II*
- Local Planning Authority
- Swansea
- Constituency
- Gower MP: Tonia Antoniazzi (Lab)
- Country
- Wales
- Date first listed
- 3 June 1964
- Type
- Castle
- Address
- Pennard Castle, Pennard Burrows
- OS grid reference
- SS 544 885
- Coordinates
- 51.57656, -4.10254
- Source
- Cadw listing
Description
Pennard Castle is a ruined castle constructed of rubble stone walls. Only parts of the curtain wall and gatehouse remain. The eastern gatehouse features a segmental arch over the main doorway, with a segmental-headed window above it. It is flanked by two-stage half-round towers, which are battered at their bases. The southern tower is less well preserved and has been partially reconstructed, supported by concrete underpinning and cement render. It includes a first-floor arrow slit facing the entrance and partial survival of two merlons of the battlements. The northern tower has an arrow slit on the lower level and a similar arrow slit facing inwards above it. The curtain wall north of the gatehouse is set back at an angle and incorporates a tall, narrow, flat-headed window. The north wall has numerous putlogs, above which are sockets used to drain the wall walk. At the western end is a shallow garderobe projection, though the wall is now breached. The northwest angle has a half-round turret, with its wall partially fallen away towards the cliff.
Inside the gatehouse, the north tower has wide embrasures and segmental rere arches to its windows, plus an arrow slit facing the gateway, though its rere arch is missing. An inset band marks the level of the first-floor beams. The rear of this tower is square and wider than the half-round front, creating an irregular plan. Only a small portion of the southern tower is visible above ground level; its first-floor arrow slit has a concrete lintel where a rere arch once stood. The north curtain wall is partially missing, and no wall walk is now visible. The northwest turret’s west wall contains the embrasure of a former window, also lacking its rere arch. A tower was added against the exterior of the west curtain wall after the castle ceased to be primarily defensive. A breach in the curtain wall has been filled with modern blockwork incorporating a doorway. The later tower's interior includes raked sills and embrasures of west and south windows and numerous putlogs. Finally, a detached curved section of the south curtain wall also remains.
Local climate
Pennard Castle sits in one of the wettest parts of the UK, with an average of 1,490 mm of rain a year. This makes it wetter than 98% of listed buildings in the UK. Its exposure to wind-driven rain is greater than that of 99% of listed buildings.
It experiences an average of 7 freeze-thaw cycles a year, fewer than 95% of listed buildings. Of these, 2 follow at least 1 mm of rain in the preceding 48 hours. Average temperatures at this location have risen by 0.3°C per decade since 1991.
Averages for 1991–2020; temperature trend 1991–2025. Figures describe the wider area (a grid cell of roughly 10 km), not the individual site. Contains modified Copernicus Climate Change Service information 2026.
More on this building
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- Detailed attributes — period, style, materials, features
- Flood risk assessment
- Radon risk assessment
- Weather exposure and heating demand — rain and frost month by month and year by year, wind direction, solar and humidity
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