Outbuilding at Bwlch-issa is a Grade II listed building in the Denbighshire local planning authority area, Wales. First listed on 22 April 1998. Outbuilding.
Outbuilding at Bwlch-issa
- WRENN ID
- winding-vestry-sable
- Grade
- II
- Local Planning Authority
- Denbighshire
- Constituency
- Clwyd East MP: Becky Gittins (Lab)
- Country
- Wales
- Date first listed
- 22 April 1998
- Type
- Outbuilding
- Address
- Outbuilding at Bwlch-issa, Pentre-Dwfr, Llangollen, Llantysilio
- OS grid reference
- SJ 200 474
- Coordinates
- 53.01863, -3.19339
- Source
- Cadw listing
Description
The outbuilding at Bwlch-issa is a Grade II listed structure built of rubble stonework with a timber-framed front that faces the main house, topped with a graded slate roof. It consists of one bay, featuring a gable fireplace and a staircase leading to the attic. The building has been extended to the west in stonework, which now includes a cartshed with a corrugated iron roof. The stone gable end faces the road. The former location of a stair or lobby entry next to the stack has been infilled with stone. The stack has offset drips over the ridge and roof slopes.
The timber-framed front has five bays, two panels high, with some wattle and daub infilling. The bay closest to the stack retains a crudely cut arched doorhead, likely created when the lobby door was bricked up. The fifth framing bay now features an external door that provides access to the loft. The extension has an open front and a gable opening to the loft above.
Inside, there is a large fireplace with a chamfered fire lintel in the main room. The end wall is timber framed against the stone extension. A dog-leg staircase, with stone steps, leads to the loft above.
Local climate
Outbuilding at Bwlch-issa receives an average of 920 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 73% of listed buildings.
It experiences an average of 48 freeze-thaw cycles a year, more than 89% of listed buildings. Of these, 28 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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