Retaining Wall on NE.Side of River Alun between Bridge by Pen-y-Ffos and Bridge behind Cloister Hall is a Grade II listed building in the Pembrokeshire Coast National Park local planning authority area, Wales. First listed on 26 August 1981. Retaining wall.

Retaining Wall on NE.Side of River Alun between Bridge by Pen-y-Ffos and Bridge behind Cloister Hall

WRENN ID
lapsed-belfry-reed
Grade
II
Local Planning Authority
Pembrokeshire Coast National Park
Constituency
Mid and South Pembrokeshire MP: Henry Tufnell (Lab)
Country
Wales
Date first listed
26 August 1981
Type
Retaining wall
Address
Retaining Wall on NE.Side of River Alun between Bridge by Pen-y-Ffos and Bridge behind Cloister Hall, St. David's and the Cathedral Close
OS grid reference
SM 751 255
Coordinates
51.88261, -5.26858
Source
Cadw listing

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

Description

The retaining wall on the northeast side of the River Alun is made of rubble stone and supports garden walls of varying heights, some of which are partly collapsed behind the Treasury house. At the base of the garden of Treasury Cottage, there is an opening with steps leading down to the water.

Local climate

Retaining Wall on NE.Side of River Alun between Bridge by Pen-y-Ffos and Bridge behind Cloister Hall sits in a wetter-than-average part of the UK, with an average of 1,050 mm of rain a year. This makes it wetter than 85% of listed buildings in the UK. Its exposure to wind-driven rain is greater than that of 96% 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.

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Nearby listed buildings

  1. Undercrofts of former St Mary's College, beneath & to the rear of The Cloister Hall Grade I 16 m
  2. Enclosing Wall & Gateway on N.Side of rear yard of Cloister Hall Grade I 17 m
  3. St David's Cathedral Hall (formerly Chapel of St Mary's College) & attached Cloister Ruins Grade I 25 m
  4. Bridge to rear of Cloister Hall Grade II 28 m
  5. Garden Wall to NE.of Treasurer's House Grade II 34 m
  6. Wall of walled garden to S. of Cloister Hall Grade II 36 m
  7. Cloister Hall Grade I 38 m
  8. Outbuilding to N. of The Cloister Hall Grade I 43 m
  9. Pen-y-Ffos Grade II 45 m
  10. Footbridge by Pen-y-Ffos Grade II 46 m