Erwsuran is a Grade II listed building in the Snowdonia National Park local planning authority area, Wales. First listed on 30 March 1999. House.
Erwsuran
- WRENN ID
- riven-window-flax
- 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
- Erwsuran, Dolbenmaen, Gwynedd
- OS grid reference
- SH 561 415
- Coordinates
- 52.95191, -4.1425
- Source
- Cadw listing
Description
Erwsuran is a building constructed from local stone rubble, featuring megalithic quoins and door jambs, and topped with a slate roof. It consists of two bays and stands two storeys tall, with a one-storey and loft extension attached to the southeast gable. The entrance is an off-centre boarded door, set within an opening that has a megalithic jamb on the right and a radial arch made of long slate voussoirs. To the left of the door is a small four-pane window, while to the right is a nine-pane window. The upper floor is fitted with nine-pane sash windows. The gable stacks are rendered. A flight of steps leads up to the grain loft, which is situated over a cellar in the southeast extension, and this extension includes a window in the gable end and a rooflight. The building was not accessible at the time of inspection.
Local climate
Erwsuran sits in one of the wettest parts of the UK, with an average of 1,500 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 98% of listed buildings.
It experiences an average of 32 freeze-thaw cycles a year, fewer than 58% of listed buildings. Of these, 16 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
- Sale history — 1 transaction since 2022
- 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
Matched applications, energy data and sale records are assembled automatically and may contain errors. Flag incorrect data.
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