Monument at Hean Castle is a Grade II listed building in the Pembrokeshire Coast National Park local planning authority area, Wales. First listed on 7 May 1997. Parochial house.

Monument at Hean Castle

WRENN ID
idle-keystone-sorrel
Grade
II
Local Planning Authority
Pembrokeshire Coast National Park
Constituency
Mid and South Pembrokeshire MP: Henry Tufnell (Lab)
Country
Wales
Date first listed
7 May 1997
Type
Parochial house
Address
Monument at Hean Castle, Hean Castle Estate, Saundersfoot
OS grid reference
SN 137 059
Coordinates
51.72109, -4.69786
Source
Cadw listing

Also on this page: flood risk · radon risk · weather exposure · detailed attributes ↓

Description

The monument at Hean Castle is a Tuscan column that commemorates Lady Anne, who died in 1902, and was the wife of Sir William Thomas Lewis, the 1st Baron Merthyr. Lady Lewis is also remembered in the east window of St Issell's Church, where her portrait is displayed. The inscription on the monument indicates that she came from a family well-known in the South Wales steam-coal trade.

This freestanding column has a diameter of about 0.6 meters and is approximately seven times its diameter in height. It features an Attic base, all made of polished red granite. The column stands on a limestone base, which includes a block with the inscription on the east side, set on a plinth and three rock-faced steps.

Local climate

Monument at Hean Castle sits in one of the wettest parts of the UK, with an average of 1,210 mm of rain a year. This makes it wetter than 91% 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 5 freeze-thaw cycles a year, fewer than 97% 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.

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Nearby listed buildings

  1. Hean Castle Grade II 95 m
  2. Gate Lodge Grade II 169 m
  3. The Cottage Grade II 466 m
  4. Preaching Cross at St. Issell's Church Grade II 498 m
  5. St Issell's Church Grade II* 509 m
  6. Principal entrance gates to Saint Issell's Churchyard Grade II 517 m
  7. Rear gates to Saint Issell's Churchyard Grade II 520 m
  8. North gates to Saint Issell's churchyard Grade II 560 m
  9. Set of Five cast iron grave slabs in Saint Issell's churchyard Grade II 577 m
  10. Saundersfoot Railway Tunnel (Middle ) Grade II 595 m