Cefn-Trefeiler is a Grade II listed building in the Isle of Anglesey local planning authority area, Wales. First listed on 30 January 1968. Domestic range.

Cefn-Trefeiler

WRENN ID
brooding-timber-bracken
Grade
II
Local Planning Authority
Isle of Anglesey
Constituency
Ynys Môn MP: Llinos Medi (PC)
Country
Wales
Date first listed
30 January 1968
Type
Domestic range
Address
Cefn-Trefeiler, Bethel, Bodorgan
OS grid reference
SH 397 705
Coordinates
53.20754, -4.40109
Source
Cadw listing

Also on this page: sale history · flood risk · radon risk · weather exposure · detailed attributes ↓

Description

Cefn-Trefeiler is a one-and-a-half storey building with a three-window range. It features an outshot with a catslide roof at the rear and a single-storey former cowhouse at the northern end, which has been converted into a four-window domestic range. The structure is built of rubble masonry and is limewashed. It has a slate roof and rubble gable stacks with dripstones. The central doorway is flanked by windows that are slightly recessed top-hung casements designed to resemble four-pane sashes. The ground floor openings have slightly segmental heads, and there are three similarly detailed windows in hipped roof dormers aligned above.

Local climate

Cefn-Trefeiler sits in one of the wettest parts of the UK, with an average of 1,180 mm of rain a year. This makes it wetter than 90% of listed buildings in the UK. Its exposure to wind-driven rain is greater than that of 96% of listed buildings.

It experiences an average of 11 freeze-thaw cycles a year, fewer than 90% 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
  • Sale history — 3 transactions since 2003
  • 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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