Trewyn is a Grade II listed building in the Isle of Anglesey local planning authority area, Wales. First listed on 23 September 1950. Church. 2 related planning applications.
Trewyn
- WRENN ID
- burning-obsidian-sunrise
- Grade
- II
- Local Planning Authority
- Isle of Anglesey
- Constituency
- Ynys Môn MP: Llinos Medi (PC)
- Country
- Wales
- Date first listed
- 23 September 1950
- Type
- Church
- Address
- Trewyn, 8 the West End, Beaumaris
- OS grid reference
- SH 603 759
- Coordinates
- 53.26231, -4.09561
- Source
- Cadw listing
Description
Trewyn is a late-Georgian style three-storey, three-bay house featuring whitened scribed roughcast, a slate roof, and shared roughcast end stacks. The entrance, located in the right-hand bay, is framed by plain pilasters and a pediment. It has a replacement panelled door with an overlight above. The house includes twelve-pane sash windows set within moulded architraves. The lower storey windows are horned sashes, while the middle and upper storeys have hornless sashes. The upper storey also features a blind central window and gabled outer windows.
Local climate
Trewyn 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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- No EPC on record for this property
- No sale records on file
- Related listed building consents — 2 applications
- 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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