Plas Bach is a Grade II listed building in the Isle of Anglesey local planning authority area, Wales. First listed on 2 September 1952. Farmhouse.
Plas Bach
- WRENN ID
- small-mantel-foxglove
- Grade
- II
- Local Planning Authority
- Isle of Anglesey
- Constituency
- Ynys Môn MP: Llinos Medi (PC)
- Country
- Wales
- Date first listed
- 2 September 1952
- Type
- Farmhouse
- Address
- Plas Bach, Llanbedrgoch, Llanfair-Mathafarn-Eithaf
- OS grid reference
- SH 513 803
- Coordinates
- 53.29938, -4.23188
- Source
- Cadw listing
Description
Plas Bach is an early 19th-century farmhouse that stands two stories high and features a three-window range, along with a storeyed service wing at the rear and a lean-to porch at the angle. The building is constructed from rubble masonry, with large stones used as quoins, while all sides except the principal elevation are pebbledashed. The roof is covered with small slates, has tiled copings and ridge, and includes rendered gable stacks.
The principal elevation showcases a reset 16th-century doorway that features a shallow pointed arched head within a rectangular frame, complete with moulded jambs and weathered shields in the spandrels. The windows are 16-pane hornless sashes with slate sills; the ground floor windows have cambered voussoir heads, while the first-floor windows are positioned directly under the eaves. The rear windows have been replaced with modern timber-framed casements.
The interior was not inspected during the survey, but the owner has indicated that it has been modernised and does not retain any original features.
Local climate
Plas Bach sits in a wetter-than-average part of the UK, with an average of 1,070 mm of rain a year. This makes it wetter than 86% of listed buildings in the UK. Its exposure to wind-driven rain is greater than that of 91% of listed buildings.
It experiences an average of 14 freeze-thaw cycles a year, fewer than 87% of listed buildings. Of these, 5 follow at least 1 mm of rain in the preceding 48 hours. Average temperatures at this location have risen by 0.2°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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