Pantyffynnon Signal Box is a Grade II listed building in the Carmarthenshire local planning authority area, Wales. First listed on 10 August 1994. Standing stone.
Pantyffynnon Signal Box
- WRENN ID
- ghost-ashlar-cream
- Grade
- II
- Local Planning Authority
- Carmarthenshire
- Constituency
- Caerfyrddin MP: Ann Davies (PC)
- Country
- Wales
- Date first listed
- 10 August 1994
- Type
- Standing stone
- Address
- Pantyffynnon Signal Box, Ammanford
- OS grid reference
- SN 622 106
- Coordinates
- 51.77729, -3.99765
- Source
- Cadw listing
Description
Pantyffynnon Signal Box is a structure built with dark brick for the locking room and porch, complemented by horizontal weatherboarding and small-frame glazing in the operating room. It features gabled slate roofs adorned with bargeboards and finials, along with ventilators underneath. The track side has extensive glazing with horizontally sliding 3 + 2 pane sashes and short grabrails on the outer bays. A name-plate is positioned beneath the center windows. The locking room includes fixed timber windows arranged in a 3x4-pane configuration, and a door is located beneath an open-tread timber stair with a handrail that leads to a cantilevered landing for the first-floor porch.
Local climate
Pantyffynnon Signal Box 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.
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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