Kidwelly Castle is a Grade I listed building in the Carmarthenshire local planning authority area, Wales. First listed on 12 May 1963. A Medieval Castle.
Kidwelly Castle
- WRENN ID
- deep-foundation-aspen
- Grade
- I
- Local Planning Authority
- Carmarthenshire
- Constituency
- Llanelli MP: Dame Nia Griffith (Lab)
- Country
- Wales
- Date first listed
- 12 May 1963
- Type
- Castle
- Period
- Medieval
- Address
- Kidwelly Castle, Kidwelly/Cydweli
- OS grid reference
- SN 408 070
- Coordinates
- 51.73951, -4.30573
- Source
- Cadw listing
Description
Kidwelly Castle is a Grade I listed structure built from rubble stone, primarily consisting of millstone grit boulders with sandstone and some Sutton limestone used for dressings. The castle features a massive twin-towered south gatehouse. To the west, there is a semi-circular outer ward wall that has four towers, one of which has collapsed. The square inner ward is surrounded by four corner towers, connected by straight stretches of curtain wall to the southeast corner of the gatehouse and the northeast end of the outer ward wall. The southwest tower includes a domed vault. There is a hall located against the east side of the inner ward. A fine polygonal-ended chapel projects east from the southeast tower of the inner ward, accompanied by a cross-gabled sacristy tower to the south. The kitchen, dating from around 1500, is situated in the southwest corner. In the outer ward, there are two large gabled ranges: the Tudor Hall, located against the west wall of the inner ward and dating from around 1500, and another range in the northeast corner, north of the northeast tower of the inner ward, which is likely of the same period.
Local climate
Kidwelly Castle sits in one of the wettest parts of the UK, with an average of 1,410 mm of rain a year. This makes it wetter than 97% 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 9 freeze-thaw cycles a year, fewer than 91% of listed buildings. Of these, 3 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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- No EPC on record for this property
- No sale records on file
- No related consent applications matched
- 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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