Farm building at Gweinion is a Grade II listed building in the Snowdonia National Park local planning authority area, Wales. First listed on 4 November 1999. Farm building. 2 related planning applications.
Farm building at Gweinion
- WRENN ID
- hallowed-transept-ivy
- Grade
- II
- Local Planning Authority
- Snowdonia National Park
- Constituency
- Dwyfor Meirionnydd MP: Liz Saville Roberts (PC)
- Country
- Wales
- Date first listed
- 4 November 1999
- Type
- Farm building
- Address
- Farm building at Gweinion, Mallwyd, Mawddwy, Gwynedd
- OS grid reference
- SH 879 123
- Coordinates
- 52.6968, -3.65971
- Source
- Cadw listing
Description
The farm building at Gweinion is a Grade II listed structure built from roughly coursed rubble stonework, featuring larger stones at the bottom, and topped with a slate roof. The building consists of a three-bay barn at the northern end and a single bay that is likely a stable or cowhouse to the left. There are pigsties located under a lean-to roof made of corrugated iron against the gable end. The barn has a large central door and two tiers of ventilation slits, along with a stable-type door at the northern end. The stable includes a stable door and a loft above, which is ventilated by a continuation of the upper range of slits. The pigsty appears to be an addition, consisting of two sties under the lean-to roof, each with an open run made of stone and equipped with a gate.
Inside the barn, there are three equal bays defined by timber-framed partitions resting on low stone sills, flanking a central threshing floor. The roof trusses support three tiers of purlins, and there is a gable window in the northern gable of the loft above the stable.
Local climate
Farm building at Gweinion sits in one of the wettest parts of the UK, with an average of 1,240 mm of rain a year. This makes it wetter than 93% of listed buildings in the UK. Its exposure to wind-driven rain is greater than that of 87% of listed buildings.
It experiences an average of 47 freeze-thaw cycles a year, more than 88% of listed buildings. Of these, 26 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
- Related listed building consents — 2 applications
- 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
Matched applications, energy data and sale records are assembled automatically and may contain errors. Flag incorrect data.
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