Milestone on A40, to SW of Derwen Fach is a Grade II listed building in the Carmarthenshire local planning authority area, Wales. First listed on 13 February 1995. Detached house.
Milestone on A40, to SW of Derwen Fach
- WRENN ID
- gilded-chamber-jackdaw
- Grade
- II
- Local Planning Authority
- Carmarthenshire
- Constituency
- Caerfyrddin MP: Ann Davies (PC)
- Country
- Wales
- Date first listed
- 13 February 1995
- Type
- Detached house
- Address
- Milestone on A40, to SW of Derwen Fach, Manordeilo, Manordeilo and Salem
- OS grid reference
- SN 686 278
- Coordinates
- 51.93316, -3.91239
- Source
- Cadw listing
Description
This milestone, located on the A40 to the southwest of Derwen Fach, is made of stone and is inscribed with the text "7 mile Llandov/ery 4 Llandilo".
Local climate
Milestone on A40, to SW of Derwen Fach sits in one of the wettest parts of the UK, with an average of 1,450 mm of rain a year. This makes it wetter than 98% of listed buildings in the UK. Its exposure to wind-driven rain is greater than that of 94% of listed buildings.
It experiences an average of 42 freeze-thaw cycles a year, more than 81% of listed buildings. Of these, 21 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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