Plas Bach is a Grade II listed building in the Gwynedd local planning authority area, Wales. First listed on 27 August 1999. Lodge.
Plas Bach
- WRENN ID
- sunken-foundation-nettle
- Grade
- II
- Local Planning Authority
- Gwynedd
- Constituency
- Dwyfor Meirionnydd MP: Liz Saville Roberts (PC)
- Country
- Wales
- Date first listed
- 27 August 1999
- Type
- Lodge
- Address
- Plas Bach, Caeathro, Llanrug
- OS grid reference
- SH 507 625
- Coordinates
- 53.1391, -4.23311
- Source
- Cadw listing
Description
Plas Bach is a lodge built in a picturesque Gothic style, featuring a roughly T-plan layout. It has two storeys in the main range and a single-storey short range, with a late 20th-century single-storey lean-to attached to the north gable end of the main range. The exterior is made of rendered rubblestone, with plastered quoins, dripstones, and window surrounds. The roofs are slate, adorned with cusped, fretted bargeboards and carved pointed finials at the overhanging verges.
On the south elevation, there is a gable to the left, which includes a two-light wooden mullioned and transomed window on the first floor, situated above a slate-roofed bay that features a four-light wooden mullioned and transomed window at the front and extending to the sides. A prominent rebuilt lateral stack is located to the east at the junction with the short range. The entrance is through a multi-paned half-glazed door leading to a lean-to porch positioned in the angle between the ranges, which has a single-light window on the side. Additionally, there is a three-light wooden mullioned and transomed window on the gable end of the short range. All windows have multi-paned sections above the transoms, with plain glazing below.
The interior was not inspected at the time of the survey.
Local climate
Plas Bach sits in one of the wettest parts of the UK, with an average of 1,380 mm of rain a year. This makes it wetter than 97% of listed buildings in the UK. Its exposure to wind-driven rain is greater than that of 98% of listed buildings.
It experiences an average of 25 freeze-thaw cycles a year, fewer than 73% of listed buildings. Of these, 12 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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