Penllyn is a Grade II listed building in the Isle of Anglesey local planning authority area, Wales. First listed on 11 June 2002. Farmhouse.
Penllyn
- WRENN ID
- western-span-moss
- Grade
- II
- Local Planning Authority
- Isle of Anglesey
- Constituency
- Ynys Môn MP: Llinos Medi (PC)
- Country
- Wales
- Date first listed
- 11 June 2002
- Type
- Farmhouse
- Address
- Penllyn, Llanddyfnan
- OS grid reference
- SH 492 808
- Coordinates
- 53.30342, -4.26391
- Source
- Cadw listing
Description
Penllyn is an early 19th century two-storey farmhouse designed in the Georgian vernacular style. It features a single-storey service wing at the rear and an outshut built in the southwest angle under a catslide roof. The building is constructed of rubble masonry, with the left gable return finished in pebbledash render. The slate roof has stone coping and rectangular gable stacks with capping. The main elevation faces east towards the road and consists of a two-window range with a central doorway, featuring 12-paned hornless sash windows. The service wing includes a small paned light in the north wall. The interior was not inspected during the survey.
Local climate
Penllyn 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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