Barn at Llangwm Isaf is a Grade II listed building in the Monmouthshire local planning authority area, Wales. First listed on 12 October 2000. Barn.
Barn at Llangwm Isaf
- WRENN ID
- other-paling-hawk
- Grade
- II
- Local Planning Authority
- Monmouthshire
- Constituency
- Monmouthshire MP: Catherine Fookes (Lab)
- Country
- Wales
- Date first listed
- 12 October 2000
- Type
- Barn
- Address
- Barn at Llangwm Isaf, Llansoy, Usk, Llantrisant Fawr
- OS grid reference
- SO 428 014
- Coordinates
- 51.70887, -2.82821
- Source
- Cadw listing
Description
The barn at Llangwm Isaf is a Grade II listed structure built from rubble stone and topped with a pantiled roof. The walls feature thin stones, and the door heads are also made of stone. The front of the barn has a central high opening with a cambered arch, which has later barn doors added in front. There are vent loops on each side of this opening.
To the left of the ground floor, there are two doors, while the right side has stone steps leading outside. Attached to each end of the barn are lower ranges; the right one is lofted and has a blocked loft door, with the right corner rebuilt in blockwork. The left range is single storey and features late 19th-century red brick framing around a door and window on the right, with a pair of casement windows in the centre. The interior was not available for inspection at the time of the survey.
Local climate
Barn at Llangwm Isaf receives an average of 860 mm of rain a year. This makes it wetter than 60% of listed buildings in the UK. Its exposure to wind-driven rain is greater than that of 62% of listed buildings.
It experiences an average of 40 freeze-thaw cycles a year, more than 77% of listed buildings. Of these, 18 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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