Agricultural Range at Castellmoch-fawr is a Grade II listed building in the Powys local planning authority area, Wales. First listed on 14 August 2003. Agricultural building.
Agricultural Range at Castellmoch-fawr
- WRENN ID
- shadowed-cloister-jet
- Grade
- II
- Local Planning Authority
- Powys
- Constituency
- Montgomeryshire and Glyndwr MP: Steve Witherden (Lab)
- Country
- Wales
- Date first listed
- 14 August 2003
- Type
- Agricultural building
- Address
- Agricultural Range at Castellmoch-fawr, Tanat Valley, Llanrhaeadr-Ym-Mochnant
- OS grid reference
- SJ 111 246
- Coordinates
- 52.81179, -3.32002
- Source
- Cadw listing
Description
The Agricultural Range at Castellmoch-fawr is a large lofted building dating from around the 19th century. It consists of approximately seven bays, running north to south and facing west. The structure features a central rear wing and an additional monopitch shed that fills the northeast corner between the main range and the rear wing. The building is constructed from quasi-rubble slate stonework, with timber-framing that is clad in vertical boarding on the gables to the north and east, above eaves level. The roof is made of slate, generally laid in small courses, with some areas patched in more regular slating, and has a tile ridge.
On the front elevation, there is one small timber dormer, three doors, and four windows that alternate with the doors. The loft has gable hatches on the south and east sides. The rear wing includes a door and side slit ventilators, while the monopitch extension features a door, a window, and a side hatch.
Local climate
Agricultural Range at Castellmoch-fawr sits in a wetter-than-average part of the UK, with an average of 960 mm of rain a year. This makes it wetter than 75% of listed buildings in the UK. Its exposure to wind-driven rain is greater than that of 61% of listed buildings.
It experiences an average of 45 freeze-thaw cycles a year, more than 86% of listed buildings. Of these, 25 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
- No related consent applications matched
- 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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