Henllan is a Grade II listed building in the Powys local planning authority area, Wales. First listed on 19 September 2002. House.
Henllan
- WRENN ID
- iron-spindle-lichen
- Grade
- II
- Local Planning Authority
- Powys
- Constituency
- Montgomeryshire and Glyndwr MP: Steve Witherden (Lab)
- Country
- Wales
- Date first listed
- 19 September 2002
- Type
- House
- Address
- Henllan, Llangynyw, Llangyniew
- OS grid reference
- SJ 131 091
- Coordinates
- 52.67271, -3.28527
- Source
- Cadw listing
Description
Henllan is a house located downslope, with its north gable facing the road. Much of the exterior has been rebuilt or repaired using modern materials, but timber framing remains on the east side, resting on a rubble stonework plinth. Other sides are finished in brick, rendered, or sheeted, topped with an artificial slate roof that includes rooflights and two dormers on the east side, along with a small brick chimney.
The house consists of four units and features a large inserted chimney positioned centrally. To the south, there is a hall and inner rooms separated by post and panel partitioning, while the north side contains an early cross passage and a large outer room currently used for farming purposes. Three crucks are visible on the ground floor, and there may be more upstairs, although they are boxed in. The Royal Commission has noted features such as open-roof timbering with gable smoke vents, signs of a dais canopy, and a timber-framed fireplace with post and panel partitioning at its rear, which forms the inner service rooms at the lower end.
Local climate
Henllan receives an average of 950 mm of rain a year. This makes it wetter than 73% of listed buildings in the UK. Its exposure to wind-driven rain is greater than that of 67% of listed buildings.
It experiences an average of 39 freeze-thaw cycles a year, more than 76% of listed buildings. Of these, 20 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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