Milestone opposite Y Dderw is a Grade II listed building in the Powys local planning authority area, Wales. First listed on 15 December 1995. Milestone.

Milestone opposite Y Dderw

WRENN ID
rusted-ledge-wax
Grade
II
Local Planning Authority
Powys
Constituency
Brecon, Radnor and Cwm Tawe MP: David Chadwick (LD)
Country
Wales
Date first listed
15 December 1995
Type
Milestone
Address
Milestone opposite Y Dderw, Pipton, Bronllys
OS grid reference
SO 140 375
Coordinates
52.02939, -3.25371
Source
Cadw listing

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

Description

This is a late 18th century turnpike milestone located opposite Y Dderw. It is made of laminated sandstone and features a rounded top. The milestone, which was formerly painted, has incised lettering that reads:

HAY / 7 / (B)UILTH / 12.

Additionally, the top of the milestone has an incised bench mark arrow. This milestone is included as a monument to the turnpike era of road transport.

Local climate

Milestone opposite Y Dderw sits in a wetter-than-average part of the UK, with an average of 1,100 mm of rain a year. This makes it wetter than 87% of listed buildings in the UK. Its exposure to wind-driven rain is greater than that of 74% of listed buildings.

It experiences an average of 52 freeze-thaw cycles a year, more than 93% of listed buildings. Of these, 30 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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Nearby listed buildings

  1. Barn S of Y Dderw Grade II 94 m
  2. Barn at W side of farmyard at Y Dderw Grade II 136 m
  3. Y Dderw Grade II* 163 m
  4. Llyswen Presbyterian Church Grade II 608 m
  5. Lower House Farmhouse Grade II 640 m
  6. Pentre-Sollars Grade II 775 m
  7. Star House Grade II 883 m
  8. Church of St. Gwendoline Grade II 893 m
  9. Griffin Inn Grade II 942 m
  10. Toll Cottage at Boughrood Bridge Grade II 1.4 km