Ice House at Llan Wysg is a Grade II listed building in the Brecon Beacons National Park local planning authority area, Wales. First listed on 21 October 1998. Ice house.

Ice House at Llan Wysg

WRENN ID
rusted-groin-umber
Grade
II
Local Planning Authority
Brecon Beacons National Park
Constituency
Brecon, Radnor and Cwm Tawe MP: David Chadwick (LD)
Country
Wales
Date first listed
21 October 1998
Type
Ice house
Address
Ice House at Llan Wysg, Dardy, Llangattock, Powys
OS grid reference
SO 206 187
Coordinates
51.86177, -3.15385
Source
Cadw listing

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

Description

The Ice House at Llan Wysg is a Grade II listed structure built into a bank where the ground slopes sharply down to the north. The front wall is made of roughly coursed masonry and features an opening under a segmental arch with voussoirs. Remnants of fittings for a former door can still be seen. Inside, there is a single vaulted chamber that extends into the bank from the entrance.

Local climate

Ice House at Llan Wysg sits in a wetter-than-average part of the UK, with an average of 1,100 mm of rain a year. This makes it wetter than 87% of listed buildings in the UK. Its exposure to wind-driven rain is greater than that of 74% of listed buildings.

It experiences an average of 54 freeze-thaw cycles a year, more than 94% of listed buildings. Of these, 30 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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  • No EPC on record for this property
  • No sale records on file
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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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  1. Llan Wysg Grade II* 52 m
  2. Llan Wysg Cottage Grade II 248 m
  3. Folly Bridge (Canal Bridge No 119) Grade II 259 m
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  5. South Lodge Grade II 694 m
  6. Llanfair Farmhouse Grade II 757 m
  7. Glan Nant Grade II 783 m
  8. Lodge to Maescelyn Grade II 846 m
  9. Cwrt Llangattock Grade II* 857 m
  10. Gwernvale Manor Hotel Grade II 921 m