Gate piers, Tros-y-marian is a Grade II listed building in the Isle of Anglesey local planning authority area, Wales. First listed on 30 January 1968. Gate piers.

Gate piers, Tros-y-marian

WRENN ID
woven-cinder-tallow
Grade
II
Local Planning Authority
Isle of Anglesey
Constituency
Ynys Môn MP: Llinos Medi (PC)
Country
Wales
Date first listed
30 January 1968
Type
Gate piers
Address
Gate piers, Tros-y-marian, Llangoed
OS grid reference
SH 610 811
Coordinates
53.30862, -4.08623
Source
Cadw listing

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

Description

The gate piers at Tros-y-marian are made of stone and are square in shape. They feature moulded capping and ball finials on top.

Local climate

Gate piers, Tros-y-marian 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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  • 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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