Tan y Graig is a Grade II listed building in the Gwynedd local planning authority area, Wales. First listed on 24 May 2000. House. 1 related planning application.
Tan y Graig
- WRENN ID
- errant-sandstone-spindle
- Grade
- II
- Local Planning Authority
- Gwynedd
- Constituency
- Bangor Aberconwy MP: Claire Hughes (Lab)
- Country
- Wales
- Date first listed
- 24 May 2000
- Type
- House
- Address
- Tan y Graig, Llandygai, Bangor, LL57 4LB
- OS grid reference
- SH 598 706
- Coordinates
- 53.2148, -4.10105
- Source
- Cadw listing
Description
Tan y Graig is a building with a roughly L-shaped plan, constructed in two storeys. It features a slightly projecting full-height gabled range on the left and a main range to the right. The exterior is made of irregularly coursed rubblestone, with roughcast on the left return of the gabled range, and it has a slate roof with deep verges and carved purlin ends.
The gabled range includes a 2-light window on the first floor and a 3-light window on the ground floor, both with cambered heads and slate cills. The main range has a similar 2-light window on the ground floor and a 2-light window in a gabled dormer that breaks the eaves directly above. There is also a raking dormer to the left with a 2-light window that breaks the eaves. All windows feature timber mullions and either 2 or 3 horizontal glazing bars in each light.
The main range has a boarded door with a glazed panel, which is sheltered by a bracketed lean-to hood at the angle with the gabled range. There is a paired and rebated integral end stack to the right and a prominent roughcast integral stack on the left return of the gabled range. The interior was not inspected at the time of the survey.
Local climate
Tan y Graig sits in one of the wettest parts of the UK, with an average of 1,210 mm of rain a year. This makes it wetter than 92% of listed buildings in the UK. Its exposure to wind-driven rain is greater than that of 90% of listed buildings.
It experiences an average of 37 freeze-thaw cycles a year, more than 67% of listed buildings. Of these, 19 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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- Full EPC report — heating system, energy costs, size, glazing, construction etc.
- No sale records on file
- Related listed building consents — 1 application
- 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
Matched applications, energy data and sale records are assembled automatically and may contain errors. Flag incorrect data.
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