Milestone on A470 is a Grade II listed building in the Powys local planning authority area, Wales. First listed on 18 February 2005. Marker.

Milestone on A470

WRENN ID
solitary-parapet-gilt
Grade
II
Local Planning Authority
Powys
Constituency
Brecon, Radnor and Cwm Tawe MP: David Chadwick (LD)
Country
Wales
Date first listed
18 February 2005
Type
Marker
Address
Milestone on A470, Builth Road, Llanelwedd
OS grid reference
SO 029 527
Coordinates
52.16426, -3.4205
Source
Cadw listing

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

Description

This is a freestone mile marker located on the A470. It has a segmental top and is painted white with black lettering. The marker indicates that Rhayader is 12 miles away and Builth is 1½ miles away.

Local climate

Milestone on A470 sits in a wetter-than-average part of the UK, with an average of 1,070 mm of rain a year. This makes it wetter than 86% of listed buildings in the UK. Its exposure to wind-driven rain is greater than that of 75% of listed buildings.

It experiences an average of 50 freeze-thaw cycles a year, more than 91% of listed buildings. Of these, 29 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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Nearby listed buildings

  1. Pump Room at Park Wells Grade II 817 m
  2. Spring House at Park Wells Grade II 830 m
  3. Cefndyrys Farmhouse, including attached farm ranges Grade II 906 m
  4. Multi-purpose farm ranges at Cefndyrys Farm Grade II 948 m
  5. Stable block at Cefndyrys Grade II 995 m
  6. Walls, revetment and steps to terrace on S side of Cefndyrys Grade II 1.0 km
  7. Cefndyrys Grade II* 1.0 km
  8. Builth Golf Club House Grade II 1.4 km
  9. Church of St John Grade II 1.4 km
  10. Milestone on A470 Grade II 1.5 km