Benton Castle is a Grade II* listed building in the Pembrokeshire Coast National Park local planning authority area, Wales. First listed on 13 December 1951. Castle.
Benton Castle
- WRENN ID
- weathered-merlon-russet
- Grade
- II*
- Local Planning Authority
- Pembrokeshire Coast National Park
- Constituency
- Mid and South Pembrokeshire MP: Henry Tufnell (Lab)
- Country
- Wales
- Date first listed
- 13 December 1951
- Type
- Castle
- Address
- Benton Castle, Milford Haven, Burton
- OS grid reference
- SN 005 068
- Coordinates
- 51.72514, -4.88945
- Source
- Cadw listing
Description
Benton Castle is a 17th-century castle that has been converted into a house. It is constructed of whitewashed rubble stone. To the left, there is a tall, narrow round tower adjacent to a single-bay curtain wall, which features a parapet that is slightly higher than the curtain wall itself. The left tower has a splayed base and a corbelled octagonal embattled parapet, supported by double corbels at the angles. There are two loops on the ground floor, located to the right and center left, and two more on the first floor, positioned left and center right.
On the left side of the tower, there is a large, projecting tapered garderobe chute with a square plan and a steep pyramidal cap that tapers to a point beneath the corbels of the main tower. It features a rough cambered-headed base opening and two small loops. To the left of the tower's entrance bay is a corbelled embattled parapet, which includes a small loop on the first floor and a segmental pointed doorway with stone voussoirs.
The round tower to the right lacks corbels, and its parapet has narrow slots between each wide-spaced crenellation. It contains four loops, with two located at mid-height and two on the first floor. Behind this, there is a main domestic range with a flat roof, which is lower than the embattled parapet and has a canted corner. The upper level features segmental pointed windows, including one at the eastern end, one in the canted northeast corner, and two on the long curved rear wall, along with one to the left and a small pointed window on the curve to the left above the basement door. Most of the windows have basement loops below them, along with square put-log holes and a pointed basement door on the left of the rear wall, elevated above ground level.
The western end has a projection similar to the garderobe chute on the main tower, which is three-sided and topped with a pyramidal cap. There is one similar window on each side of the stair tower cap. The windows are fitted with 20th-century uPVC glazing.
Inside, much of the interior dates from the 20th century, but the splayed plinth of the main tower is visible in the small central hall. There are steps leading up to a cambered-headed broad entry into the base of the tower, which contains an inserted fireplace. Steps also lead up to a narrow cambered-headed door on the first floor in the smaller tower to the left.
Local climate
Benton Castle sits in a wetter-than-average part of the UK, with an average of 1,160 mm of rain a year. This makes it wetter than 89% of listed buildings in the UK. Its exposure to wind-driven rain is greater than that of 98% of listed buildings.
It experiences an average of 3 freeze-thaw cycles a year, fewer than 99% of listed buildings. Of these, 1 follows 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
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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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