Telford Milestone (11) is a Grade II listed building in the Isle of Anglesey local planning authority area, Wales. First listed on 23 September 1998. Milestone.
Telford Milestone (11)
- WRENN ID
- sacred-trefoil-laurel
- Grade
- II
- Local Planning Authority
- Isle of Anglesey
- Constituency
- Ynys Môn MP: Llinos Medi (PC)
- Country
- Wales
- Date first listed
- 23 September 1998
- Type
- Milestone
- Address
- Telford Milestone (11), Gwalchmai, Trewalchmai
- OS grid reference
- SH 396 761
- Coordinates
- 53.25827, -4.40555
- Source
- Cadw listing
Description
The Telford Milestone is made of dressed Anglesey limestone and features a shallow triangular head with raking chamfered sides. It has a cast iron inset plate with white lettering on a black background that reads: HOLY- / HEAD / 11 / MONA / 2 / BANGOR / 14. The milestone is set in front of a rubble arch that is part of a boundary wall, representing a very well preserved example of a “Telford Arch,” which is believed to have been designed to enhance and draw attention to the milestone.
Local climate
Telford Milestone (11) sits in a wetter-than-average part of the UK, with an average of 1,040 mm of rain a year. This makes it wetter than 84% of listed buildings in the UK. Its exposure to wind-driven rain is greater than that of 92% of listed buildings.
It experiences an average of 10 freeze-thaw cycles a year, fewer than 91% 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 0.2°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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