Valve House is a Grade II listed building in the Powys local planning authority area, Wales. First listed on 20 March 1998. Valve house.
Valve House
- WRENN ID
- steep-quartz-heath
- Grade
- II
- Local Planning Authority
- Powys
- Constituency
- Montgomeryshire and Glyndwr MP: Steve Witherden (Lab)
- Country
- Wales
- Date first listed
- 20 March 1998
- Type
- Valve house
- Address
- Valve House, Leighton Park, Forden with Leighton and Trelystan
- OS grid reference
- SJ 244 048
- Coordinates
- 52.63619, -3.11793
- Source
- Cadw listing
Description
The Valve House is a single-storey building constructed of brick, faced with snecked, rock-faced Cefn stone, featuring rusticated quoins and dressings. It has a slate roof with overhanging eaves. The east and west walls contain small round-headed openings, although the glazing bars are missing, and these openings have prominent keystones. The south wall has a larger round-headed window. On the north side, there is a round-headed doorway with a planked door. Above the openings, there is a deep cornice supported by a corbel table, and the side walls are made of dressed stone, while the gables are faced in blue brick. Inside, there is a brick floor that includes a valve control lever, an exposed valve rod, and fixing bolts for another valve rod.
Local climate
Valve House receives an average of 860 mm of rain a year. This makes it wetter than 61% of listed buildings in the UK. Its exposure to wind-driven rain is lower than that of 55% of listed buildings.
It experiences an average of 45 freeze-thaw cycles a year, more than 86% of listed buildings. Of these, 24 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
Matched applications, energy data and sale records are assembled automatically and may contain errors. Flag incorrect data.
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