Wye Siphon Outlet House is a Grade II listed building in the Powys local planning authority area, Wales. First listed on 28 February 2005. Outlet house. 2 related planning applications.
Wye Siphon Outlet House
- WRENN ID
- solitary-rubblework-sienna
- Grade
- II
- Local Planning Authority
- Powys
- Constituency
- Brecon, Radnor and Cwm Tawe MP: David Chadwick (LD)
- Country
- Wales
- Date first listed
- 28 February 2005
- Type
- Outlet house
- Address
- Wye Siphon Outlet House, Rhayader, Nantmel, LD6 5BL
- OS grid reference
- SN 979 678
- Coordinates
- 52.29914, -3.49794
- Source
- Cadw listing
Description
The Wye Siphon Outlet House is a single-storey building constructed of brick, featuring freestone dressings and rusticated quoins, set on a rock-faced plinth. The roof is hidden behind a moulded cornice made of reconstituted stone. On the east side, there are central steel doors, which were once flanked by inscription bands that have since been chiselled out, along with cross windows on either side. The rear of the building has three similar windows. The east front includes forecourt railings that have diagonal sides leading to a central gate. Double metal doors are situated here, also flanked by cross windows, with the rear again featuring three similar windows.
Local climate
Wye Siphon Outlet House sits in a wetter-than-average part of the UK, with an average of 1,160 mm of rain a year. This makes it wetter than 89% of listed buildings in the UK. Its exposure to wind-driven rain is greater than that of 81% of listed buildings.
It experiences an average of 48 freeze-thaw cycles a year, more than 89% of listed buildings. Of these, 27 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
- Sale history — 1 transaction since 2019
- Related listed building consents — 2 applications
- 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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