Runcol Building R3 (Carillion Building 65) at Rhydymwyn Valley Site is a Grade II listed building in the Flintshire local planning authority area, Wales. First listed on 10 September 2008. Industrial building.
Runcol Building R3 (Carillion Building 65) at Rhydymwyn Valley Site
- WRENN ID
- roaming-wicket-tarn
- Grade
- II
- Local Planning Authority
- Flintshire
- Constituency
- Clwyd East MP: Becky Gittins (Lab)
- Country
- Wales
- Date first listed
- 10 September 2008
- Type
- Industrial building
- Address
- Runcol Building R3 (Carillion Building 65) at Rhydymwyn Valley Site, Cilcain
- OS grid reference
- SJ 206 663
- Coordinates
- 53.1881, -3.1894
- Source
- Cadw listing
Description
The Runcol Building R3, also known as the Carillion Building 65, is a rectangular structure located at the Rhydymwyn Valley Site. It was constructed with a concrete frame and features infill panels made of red brickwork laid in English bond. The building has a flat roof and faces the roadway, consisting of six bays, with the first and fourth bays being broader than the others.
At the southeast end, there is a narrowed doorway and a window above it with small-pane glazing. The southwest elevation includes two low rectangular blocks that were originally used as a pump room and syrup room, with stairs situated between them. The northwest end has a window at the upper level that has been reduced in size.
Internally, the building is divided into two areas. The longer southeast area, known as the reaction section, has a raised platform on the southwest side that once supported production equipment. At the northwest end, there is a doorway leading to the acid generator section. An overhead crane and some internal details from the building's operational past remain visible.
Local climate
Runcol Building R3 (Carillion Building 65) at Rhydymwyn Valley Site receives an average of 930 mm of rain a year. This makes it wetter than 70% of listed buildings in the UK. Its exposure to wind-driven rain is lower than that of 79% of listed buildings.
It experiences an average of 30 freeze-thaw cycles a year, fewer than 65% of listed buildings. Of these, 15 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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