Cwm Farmhouse is a Grade II listed building in the Powys local planning authority area, Wales. First listed on 18 September 1960. Farmhouse.
Cwm Farmhouse
- WRENN ID
- gentle-railing-plum
- Grade
- II
- Local Planning Authority
- Powys
- Constituency
- Brecon, Radnor and Cwm Tawe MP: David Chadwick (LD)
- Country
- Wales
- Date first listed
- 18 September 1960
- Type
- Farmhouse
- Address
- Cwm Farmhouse, Llandewi Fach, Painscastle
- OS grid reference
- SO 148 451
- Coordinates
- 52.09837, -3.24513
- Source
- Cadw listing
Description
Cwm Farmhouse is a late 17th century or early 18th century L-plan building. It has two storeys and is constructed of rubble stone with a slate roof and rubble stacks at each gable end. The central door is sheltered by a rough iron canopy. The cross-windows are mostly replacements of various sizes, with the ground floor windows featuring flat voussoir lintels. At the rear, there is a mullion and transom window that illuminates the stairs.
Inside, there is a large central stair hall with 18th century stairs, which include a deep moulded handrail, squared newels with half balusters, although some balusters are missing. The doors have raised and fielded panels, fitted with H-hinges and ogee-moulded architraving. The fireplace surround in the rear parlour wing is adorned with rich bolection mouldings and an overmantel featuring a framed panel and moulded cornice. A similar fireplace surround is found in the room above. The upper room to the right includes a hob grate, while the ground floor room to the left retains part of a large 18th century built-in dresser along two walls.
Local climate
Cwm Farmhouse receives an average of 950 mm of rain a year. This makes it wetter than 74% of listed buildings in the UK. Its exposure to wind-driven rain is greater than that of 58% of listed buildings.
It experiences an average of 51 freeze-thaw cycles a year, more than 92% of listed buildings. Of these, 29 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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