Walled garden at Treholford is a Grade II listed building in the Brecon Beacons National Park local planning authority area, Wales. First listed on 21 August 1998. Garden wall.

Walled garden at Treholford

WRENN ID
former-wattle-vale
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 August 1998
Type
Garden wall
Address
Walled garden at Treholford, Cathedine, Llangors, Powys
OS grid reference
SO 146 252
Coordinates
51.91924, -3.24207
Source
Cadw listing

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

Description

The walled garden at Treholford is an L-shaped structure, featuring a main rectangular plot with a western section that provides access from the house via a steep flight of stone steps. The walls are made of rubble and topped with narrow flat stone coping, stepping up to the hillside. To the northwest, the garden is bounded by the stable block. There is an entrance by the house and two additional doorways located on the hillside to the north and south. Stone kerbs outline the garden beds.

Local climate

Walled garden at Treholford 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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