Whole House Farmhouse including attached Farm Building is a Grade II listed building in the Brecon Beacons National Park local planning authority area, Wales. First listed on 14 August 1995. House. 1 related planning application.
Whole House Farmhouse including attached Farm Building
- WRENN ID
- grey-soffit-primrose
- Grade
- II
- Local Planning Authority
- Brecon Beacons National Park
- Constituency
- Brecon, Radnor and Cwm Tawe MP: David Chadwick (LD)
- Country
- Wales
- Date first listed
- 14 August 1995
- Type
- House
- Address
- Whole House Farmhouse including attached Farm Building, Rhiw-Las, Talgarth, Powys, LD3 0HA
- OS grid reference
- SO 149 305
- Coordinates
- 51.96719, -3.23969
- Source
- Cadw listing
Description
Whole House Farmhouse, built around 1625 to 1650, is constructed of whitewashed stone and features a slate roof. The building has two storeys and consists of a hall and parlour, with a two-storey porch at the lower end of the hall and a short extension at the rear, which is continued by lower outbuildings. To the west of the porch is a two-storey cowhouse and a one-bay farm building. The porch originally had an open external opening with an ovolo moulded lintel and is now fitted with a 20th-century door. Inside, the porch door is boarded and features cavetto moulded cover strips and studding with original ironwork, set within an ovolo moulded frame. There are side benches, and the 20th-century casement windows in the openings each have a monolithic drip course with dropped ends.
Attached at the lower end is the cowhouse, made of unpainted stone with a corrugated iron roof. This structure has two or three phases, with three doors and two openings to the loft. At the end, there is a further lower farm building with door and window openings, including a diamond mullioned window on the rear wall.
Inside, there is a gable stack by the entrance to the hall, featuring an oven with two phases, a wide fire lintel, and a wooden stair leading to the rear. The central cross beam has ogee stops, while the inner room or parlour has a chamfered cross beam with run-out stops and a gable stack at the upper end, which is cut into the bank of the hill. On the first floor, the room above the porch has a recess in the southeast wall. An ovolo moulded window in the northwest wall, now a cupboard, has wood mullions and re-used 17th-century panelling as doors. The roof trusses have tenoned collars, with the principals set on beams featuring run-out stops, likely replacing the originals when the roof was raised. There is an original three-light window in the rear wall with an ovolo frame and mullions. The stone fireplace on the gable wall is supported by megalithic jambs and broach stops, and a recess at the side was likely originally for a stair but was later converted into a seed-corn drying kiln.
Local climate
Whole House Farmhouse including attached Farm Building sits in a wetter-than-average part of the UK, with an average of 1,030 mm of rain a year. This makes it wetter than 82% of listed buildings in the UK. Its exposure to wind-driven rain is greater than that of 68% of listed buildings.
It experiences an average of 52 freeze-thaw cycles a year, more than 93% 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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- Full EPC report — heating system, energy costs, size, glazing, construction etc.
- 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
Matched applications, energy data and sale records are assembled automatically and may contain errors. Flag incorrect data.
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