Tan-y-graig is a Grade II listed building in the Snowdonia National Park local planning authority area, Wales. First listed on 30 March 1999. House.
Tan-y-graig
- WRENN ID
- stranded-pavement-vermeil
- Grade
- II
- Local Planning Authority
- Snowdonia National Park
- Constituency
- Dwyfor Meirionnydd MP: Liz Saville Roberts (PC)
- Country
- Wales
- Date first listed
- 30 March 1999
- Type
- House
- Address
- Tan-y-graig, Llanfihangel-Y-Pennant, Dolbenmaen, Gwynedd
- OS grid reference
- SH 527 450
- Coordinates
- 52.98233, -4.19504
- Source
- Cadw listing
Description
Tan-y-graig is a house constructed from local stone rubble and topped with a slate roof. It is a single-storey building with a loft, featuring two rooms. The main living room has a gable stack, while an additional stack is located at the lower bay. The house has a modern part-glazed door and two over one paned sash windows, which are also from the 20th century. At the rear, there is a rendered service extension that has been carefully added.
Local climate
Tan-y-graig sits in one of the wettest parts of the UK, with an average of 1,550 mm of rain a year. This makes it wetter than 99% of listed buildings in the UK. Its exposure to wind-driven rain is greater than that of 99% of listed buildings.
It experiences an average of 20 freeze-thaw cycles a year, fewer than 79% of listed buildings. Of these, 8 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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