Derwydd Outer Wall and Gates is a Grade II listed building in the Carmarthenshire local planning authority area, Wales. First listed on 27 August 1999. Wall, gate.
Derwydd Outer Wall and Gates
- WRENN ID
- ancient-copper-saffron
- Grade
- II
- Local Planning Authority
- Carmarthenshire
- Constituency
- Caerfyrddin MP: Ann Davies (PC)
- Country
- Wales
- Date first listed
- 27 August 1999
- Type
- Wall, gate
- Address
- Derwydd Outer Wall and Gates, Burry Port, Llandybie
- OS grid reference
- SN 611 178
- Coordinates
- 51.84185, -4.01665
- Source
- Cadw listing
Description
Derwydd Outer Wall and Gates is a fine freestanding wall, mostly 3 meters high, featuring a coping of upright stones that are slightly crenellated. It is constructed of uncoursed random rubble, which is very well laid. The wall begins near the corner of the north walled garden, turns south at the roadside, and continues along the roadside for a short distance east of the east cottage. At both entrances, the wall turns inward to meet gatepiers. These piers are made of ashlar and have single stone copings, which are adorned with small crenellations that match the wall's coping.
Local climate
Derwydd Outer Wall and Gates sits in one of the wettest parts of the UK, with an average of 1,430 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 96% of listed buildings.
It experiences an average of 30 freeze-thaw cycles a year, fewer than 63% of listed buildings. Of these, 13 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.
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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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