Penrhos is a Grade II listed building in the Gwynedd local planning authority area, Wales. First listed on 26 June 1998. Observatory.
Penrhos
- WRENN ID
- kindled-frieze-brook
- Grade
- II
- Local Planning Authority
- Gwynedd
- Constituency
- Dwyfor Meirionnydd MP: Liz Saville Roberts (PC)
- Country
- Wales
- Date first listed
- 26 June 1998
- Type
- Observatory
- Address
- Penrhos, Rhoshirwaun, Pwllheli, Aberdaron
- OS grid reference
- SH 191 296
- Coordinates
- 52.83383, -4.68621
- Source
- Cadw listing
Description
Penrhos is a cottage that features pebble-dashed walls, a slate roof, and brick end stacks, with the left stack on the ridge adjoining No 2 Penrhos. It is a single-storey, double-fronted building with a 6-pane sash window on each side of a half-glazed door. The cottage has earth wall construction, similar to No 2, although this is more visibly exposed there. An outbuilding is attached to the right end of the cottage. The rear is also pebble-dashed and has one boarded opening to the right.
Local climate
Penrhos sits in one of the wettest parts of the UK, with an average of 1,460 mm of rain a year. This makes it wetter than 98% of listed buildings in the UK. Its exposure to wind-driven rain is greater than that of 99% of listed buildings.
It averages fewer than one freeze-thaw cycle a year. 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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