Boundary stone on Llandyfalle Hill is a Grade II listed building in the Powys local planning authority area, Wales. First listed on 31 March 2005. Marker stone.

Boundary stone on Llandyfalle Hill

WRENN ID
stony-porch-dew
Grade
II
Local Planning Authority
Powys
Constituency
Brecon, Radnor and Cwm Tawe MP: David Chadwick (LD)
Country
Wales
Date first listed
31 March 2005
Type
Marker stone
Address
Boundary stone on Llandyfalle Hill, Llandefalle, Brecon, Felin-Fach
OS grid reference
SO 070 370
Coordinates
52.02395, -3.35585
Source
Cadw listing

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

Description

The boundary stone on Llandyfalle Hill is made of red sandstone and features a round top. It is inscribed with the letters 'A:M:L: Lord Ashburnham 1815'.

Local climate

Boundary stone on Llandyfalle Hill sits in one of the wettest parts of the UK, with an average of 1,170 mm of rain a year. This makes it wetter than 90% of listed buildings in the UK. Its exposure to wind-driven rain is greater than that of 79% of listed buildings.

It experiences an average of 50 freeze-thaw cycles a year, more than 91% of listed buildings. Of these, 28 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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  • Weather exposure and heating demand — rain and frost month by month and year by year, wind direction, solar and humidity
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