Summerhouse at Y Graig is a Grade II listed building in the Isle of Anglesey local planning authority area, Wales. First listed on 23 June 1994. Garden building.
Summerhouse at Y Graig
- WRENN ID
- burning-belfry-laurel
- Grade
- II
- Local Planning Authority
- Isle of Anglesey
- Constituency
- Ynys Môn MP: Llinos Medi (PC)
- Country
- Wales
- Date first listed
- 23 June 1994
- Type
- Garden building
- Address
- Summerhouse at Y Graig, Llanfairpwllgwyngyll, Llanfair Pwllgwyngyll
- OS grid reference
- SH 532 716
- Coordinates
- 53.22167, -4.1988
- Source
- Cadw listing
Description
The Summerhouse at Y Graig is a single-storey garden building dating from the 19th century. It features a timber frame that is slate-hung, with a grouted slate roof that has projecting verges, two red clay vents in the ridge, and a red brick chimney stack on the west gable end. The front of the building includes a three-light transomed window on the left and a three-bay tiled verandah on the right, which has central half-glazed doors beneath it. The front also has renewed timber piers. On the rear and right gable end, there are similar-style cross-frame windows.
Inside, the summerhouse has a tall, full-length room with a coved raftered ceiling and a timber chimney piece at the left end, featuring a keystone above the arched fireplace. The floor is made of timber.
Local climate
Summerhouse at 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 93% of listed buildings.
It experiences an average of 23 freeze-thaw cycles a year, fewer than 75% of listed buildings. Of these, 11 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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