Lower Cwm is a Grade II listed building in the Powys local planning authority area, Wales. First listed on 11 August 1993. House. 1 related planning application.

Lower Cwm

WRENN ID
ruined-corridor-sienna
Grade
II
Local Planning Authority
Powys
Constituency
Brecon, Radnor and Cwm Tawe MP: David Chadwick (LD)
Country
Wales
Date first listed
11 August 1993
Type
House
Address
Lower Cwm, Penybont
OS grid reference
SO 153 644
Coordinates
52.27193, -3.24216
Source
Cadw listing

Also on this page: related consents · flood risk · radon risk · weather exposure · detailed attributes ↓

Description

Lower Cwm is a two-storey building with a raised roof line, featuring a single range design. The walls are made of rubble stone, with a rendered top section. There is a brick stack at the right end. A modern boarded door is located in the right corner, and to the right of the door are small-paned timber casements that are regularly placed. The ground floor window on the far left is smaller than the others. A modern lean-to has been added at the right end, replacing the original end room.

Inside, the building has a lobby entry plan and a large open fireplace with rubble jambs, a timber lintel, and a step stop. The exposed beams have a wide chamfer and step stop. One end of the main axial beam rests on the top rail of a low timber-framed partition wall, which sits on a stone plinth; wattle grooves and stave holes are visible. The stairs are winder stairs with a multi-faceted newel cap and scribe moulded newels. The floors are made of flagstone.

Local climate

Lower Cwm 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 62% of listed buildings.

It experiences an average of 53 freeze-thaw cycles a year, more than 94% of listed buildings. Of these, 31 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
  • Related listed building consents — 1 application
  • 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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  4. Barn at Lower Llwynburfach Lower Llwynburfach Grade II 1.2 km
  5. Barn at Llwynburfach Farm Grade II 1.2 km
  6. Rhonllwyn Grade II 1.3 km
  7. Vronlase (The Old Farmhouse) Grade II 1.4 km
  8. Barn range 50m SW of old farmhouse at Vronlase Grade II 1.4 km
  9. Cowhouses 100yds SW of the Old Farmhouse at Vronlase Grade II 1.4 km
  10. The Pales (Quaker Meeting House) Grade II* 1.6 km