Agricultural range at Llwyn Isa is a Grade II listed building in the Denbighshire local planning authority area, Wales. First listed on 30 October 2000. Farm buildings.
Agricultural range at Llwyn Isa
- WRENN ID
- western-wattle-candle
- Grade
- II
- Local Planning Authority
- Denbighshire
- Constituency
- Bangor Aberconwy MP: Claire Hughes (Lab)
- Country
- Wales
- Date first listed
- 30 October 2000
- Type
- Farm buildings
- Address
- Agricultural range at Llwyn Isa, Clawddnewydd, Derwen
- OS grid reference
- SJ 093 511
- Coordinates
- 53.04983, -3.35341
- Source
- Cadw listing
Description
The agricultural range at Llwyn Isa is a collection of multi-purpose farm buildings situated on rising ground. Constructed from rubble masonry, the buildings feature a slate roof with a tile ridge and include a short forward return wing at each end. The main range has a large heck-door on the left side, along with four additional doors and one window. Above these, there are two granary doors with raking dormers, and timber lintels are used throughout.
The left wing includes a first unit with a roof that is level with the main range. This unit has a window positioned below the eaves and another granary door with a raking dormer, located at the top of a flight of stone steps. Below this is a large cartshed opening, which features a very large timber lintel but is partly blocked by later stonework. The left wing continues with a double-width cartshed.
The right wing contains a cartshed whose roof apex aligns with the eaves of the main range. This wing ends with a pigsty that is accessed from the gable end, where there are two small walled yards.
Local climate
Agricultural range at Llwyn Isa sits in a wetter-than-average part of the UK, with an average of 1,050 mm of rain a year. This makes it wetter than 84% of listed buildings in the UK. Its exposure to wind-driven rain is greater than that of 59% of listed buildings.
It experiences an average of 50 freeze-thaw cycles a year, more than 92% of listed buildings. Of these, 30 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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