Glan Hafren is a Grade II listed building in the Isle of Anglesey local planning authority area, Wales. First listed on 5 April 1971. Terraced house.
Glan Hafren
- WRENN ID
- eastward-stone-gold
- Grade
- II
- Local Planning Authority
- Isle of Anglesey
- Constituency
- Ynys Môn MP: Llinos Medi (PC)
- Country
- Wales
- Date first listed
- 5 April 1971
- Type
- Terraced house
- Address
- Glan Hafren, Llantrisant, Holyhead, Tref Alaw
- OS grid reference
- SH 347 844
- Coordinates
- 53.33129, -4.48231
- Source
- Cadw listing
Description
Glan Hafren is an 18th-century vernacular house that features two storeys and a two-window range, along with a single-storey kitchen wing that is set at right angles to the rear (north) and includes a lean-to porch in the angle. The house is constructed from rubble masonry and has a gray grit render. It has a modern slate roof with rendered gable stacks. The entrance elevation faces the smithy to the east and includes a central entrance within a shallow gabled porch, flanked by four-pane horned sash windows. The first floor has windows in gabled half dormers. The rear elevation has a single four-pane sash window at the right (south) end, along with the single-storey kitchen wing and porch that feature modern casements. The interior was not inspected during the survey.
Local climate
Glan Hafren sits in a wetter-than-average part of the UK, with an average of 1,030 mm of rain a year. This makes it wetter than 83% 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 8 freeze-thaw cycles a year, fewer than 93% of listed buildings. Of these, 3 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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