St Issui's Well is a Grade II listed building in the Brecon Beacons National Park local planning authority area, Wales. First listed on 19 July 1963. Warehouse.

St Issui's Well

WRENN ID
last-column-grove
Grade
II
Local Planning Authority
Brecon Beacons National Park
Constituency
Brecon, Radnor and Cwm Tawe MP: David Chadwick (LD)
Country
Wales
Date first listed
19 July 1963
Type
Warehouse
Address
St Issui's Well, Partrishow, the Vale of Grwyney, Powys
OS grid reference
SO 278 224
Coordinates
51.89572, -3.05004
Source
Cadw listing

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

Description

St Issui's Well is a Grade II listed structure featuring a shallow spring that feeds a small pool. The well has rubble stone walls on the north, west, and east sides. The wall on the east side is part of a field wall, while the walls on the north and west sides are built into a bank. There is a plain niche in the north wall, along with an opening at the base where water flows into the pool. A stone slab canopy covers the pool, and the east and west walls also enclose flagstones on the south side.

Local climate

St Issui's Well sits in a wetter-than-average part of the UK, with an average of 1,020 mm of rain a year. This makes it wetter than 81% of listed buildings in the UK. Its exposure to wind-driven rain is greater than that of 71% of listed buildings.

It experiences an average of 50 freeze-thaw cycles a year, more than 92% of listed buildings. Of these, 27 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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Nearby listed buildings

  1. Lych Gate at Church of St Issui, Partrishow Grade II 7 m
  2. Former Stable at Church of St Issui, Partrishow Grade II 26 m
  3. Church of St Issui, Partrishow Grade I 45 m
  4. Churchyard cross at Church of St Issui, Partrishow Grade II* 48 m
  5. Cart Shed and Cider Mill at Tynyllwyn Grade II 185 m
  6. Stable at Tynyllwyn Grade II 207 m
  7. Hen house and attached wall at Tynyllwyn Grade II 217 m
  8. Barn at Tynyllwyn Grade II 225 m
  9. Cattle ramp, cobbled pavement and revetment at Tynyllwyn Grade II 230 m
  10. Tynyllwyn Grade II* 232 m