Wiston Castle is a Grade I listed building in the Pembrokeshire local planning authority area, Wales. First listed on 16 June 2004. Castle, motte-and-bailey, shell keep.
Wiston Castle
- WRENN ID
- odd-floor-summer
- Grade
- I
- Local Planning Authority
- Pembrokeshire
- Constituency
- Mid and South Pembrokeshire MP: Henry Tufnell (Lab)
- Country
- Wales
- Date first listed
- 16 June 2004
- Type
- Castle, motte-and-bailey, shell keep
- Address
- Wiston Castle, Haverfordwest
- OS grid reference
- SN 022 181
- Coordinates
- 51.82716, -4.87097
- Source
- Cadw listing
Description
Wiston Castle consists of the ruins of a shell keep situated on a 9-metre high earth motte, which is surrounded by a ditch. A flight of about 50 steps leads up to the rubble stone circular shell keep, which sits on a platform with an 18-metre diameter. The encircling wall is mostly destroyed to the north and is circular on the inside, while the outside has a 16 or 18-sided polygon shape. The walls slope outward and feature a damaged arched entry on the south side, which includes stone voussoirs and draw-bar holes. The wall height varies between 1.5 to 2 metres and 3 to 4 metres, indicating it was originally taller. Inside the entry, stone steps are located to the right.
Local climate
Wiston Castle sits in a wetter-than-average part of the UK, with an average of 1,080 mm of rain a year. This makes it wetter than 86% of listed buildings in the UK. Its exposure to wind-driven rain is greater than that of 95% of listed buildings.
It experiences an average of 6 freeze-thaw cycles a year, fewer than 96% 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.
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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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