Penygilfach is a Grade II listed building in the Brecon Beacons National Park local planning authority area, Wales. First listed on 19 November 1998. House.
Penygilfach
- WRENN ID
- stranded-copper-bracken
- Grade
- II
- Local Planning Authority
- Brecon Beacons National Park
- Constituency
- Brecon, Radnor and Cwm Tawe MP: David Chadwick (LD)
- Country
- Wales
- Date first listed
- 19 November 1998
- Type
- House
- Address
- Penygilfach, the Vale of Grwyney, Powys
- OS grid reference
- SO 246 189
- Coordinates
- 51.86441, -3.09593
- Source
- Cadw listing
Description
Penygilfach is a house that has one-and-a-half storeys at the uphill end and two-and-a-half storeys at the downhill end. The walls are made of random rubble and painted white, with a noticeable batter, and the roof is covered with concrete pantiles. A central stone ridge stack is a 19th-century rebuild.
At the uphill end facing the yard, there are 19th-century openings offset to the left under stone lintels, featuring two-light casements flanking a boarded door. To the right, there is a small stair light. The downhill end has a wide boarded door to the left leading to the cross passage, and a 19th-century bay window to the right set on a stone plinth, all beneath a 17th-century pentice with a corrugated iron roof. In the upper storey, there are two small two-light casements beneath the wall plate and a small stair light to the right. A 19th-century roof dormer to the left has a two-light casement.
The left gable end of the house features an attic window with an original wood frame for diamond mullions, although it now has inserted glazing. The right gable end has attached outbuildings, is cement rendered, and has an inserted attic window.
The rear of the house was transformed into a new front in the late 19th century. In the centre, there is a 19th-century gabled porch with an attached lean-to made of snecked stone, featuring a Tudor-headed doorway and a boarded door, along with a two-light casement to the right. To the left of the porch, the downhill end has a 18th-century external stack that was rebuilt in the 19th century above the eaves. Flanking the stack are casements in earlier openings on the first floor, and a casement under a 19th-century lintel lower left. At the uphill end, there is a 19th-century half-dormer in the centre with a renewed casement under a stone lintel, a 19th-century two-light casement below, and a similar casement to the right lighting the original parlour, all under a drip stone.
Inside the house at the upper end, there are cross beams with stepped stops in the hall. The hall fireplace is boarded up, and to the right of it is a stone stair. Other interior features at the uphill end were introduced by the Pendarren Estate. The downhill end, including the cross passage, was not inspected but is said to retain a Tudor-headed doorway to the hall from the cross passage.
Local climate
Penygilfach sits in a wetter-than-average part of the UK, with an average of 1,020 mm of rain a year. This makes it wetter than 81% of listed buildings in the UK. Its exposure to wind-driven rain is greater than that of 71% of listed buildings.
It experiences an average of 50 freeze-thaw cycles a year, more than 92% 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.
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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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