Agricultural complex at Cwm Main is a Grade II listed building in the Gwynedd local planning authority area, Wales. First listed on 31 January 2001. Agricultural complex.
Agricultural complex at Cwm Main
- WRENN ID
- lunar-finial-birch
- Grade
- II
- Local Planning Authority
- Gwynedd
- Constituency
- Dwyfor Meirionnydd MP: Liz Saville Roberts (PC)
- Country
- Wales
- Date first listed
- 31 January 2001
- Type
- Agricultural complex
- Address
- Agricultural complex at Cwm Main, Cwmtirmynach, Llandderfel
- OS grid reference
- SH 924 467
- Coordinates
- 53.00707, -3.60362
- Source
- Cadw listing
Description
The agricultural complex at Cwm Main is a T-plan Victorian structure built from rubble with slate roofs. The complex features a central barn, which may date back to the 18th century, with single-storey stable and cowhouse blocks attached to the east and south, respectively, facing a farmyard to the south. A low storage block is connected to the barn on the north side, completing the complex.
The barn has entrances in the center on both the north and south sides, and a hipped gable end on the west. There is a boarded and framed loading bay located at the upper right on the south side. The cowhouse block has five entrances on the east side, with a four-pane window situated between the two furthest entrances on the right. The south gable end is partially open and features corrugated iron cladding on the upper section. The stable block has a hipped gable on the east side and contains four entrances on the south side, all except the second from the right having boarded doors. Plain slate lintels are present throughout the structure. The northern storage block includes a central entrance with a boarded door.
The interior was not inspected during the survey.
Local climate
Agricultural complex at Cwm Main sits in one of the wettest parts of the UK, with an average of 1,180 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 78% of listed buildings.
It experiences an average of 50 freeze-thaw cycles a year, more than 91% of listed buildings. Of these, 31 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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