Pen-y-Pentre (aka The Old Factory House) is a Grade II listed building in the Brecon Beacons National Park local planning authority area, Wales. First listed on 21 October 1998. House.
Pen-y-Pentre (aka The Old Factory House)
- WRENN ID
- second-dormer-nightshade
- Grade
- II
- Local Planning Authority
- Brecon Beacons National Park
- Constituency
- Brecon, Radnor and Cwm Tawe MP: David Chadwick (LD)
- Country
- Wales
- Date first listed
- 21 October 1998
- Type
- House
- Address
- Pen-y-Pentre (aka The Old Factory House), Llangattock, Powys
- OS grid reference
- SO 208 174
- Coordinates
- 51.8498, -3.15052
- Source
- Cadw listing
Description
Pen-y-Pentre, also known as The Old Factory House, is a three-window house with one and a half storeys, dating from the 17th century. It features an adjoining barn to the west and a rear lean-to. The exterior is pebble-dashed with a steeply pitched slate roof and stone stacks on the left, right, and right of centre. The front of the house has three wide, gabled half-dormers and two doors: a wood-planked door to the right of centre and a 20th-century half-lit door to the left of centre. The doors are situated between three ground floor windows, arranged asymmetrically, with the right-hand window offset further to the right. The windows have flat heads and stone lintels, with 4-over-8-pane sashes on the ground floor and 3-over-6-pane sashes on the first floor.
On the east gable, there is a multi-pane window that is off-centre. The rear of the house features a two-casement window. The long added lean-to at the rear is also pebble-dashed, covered by a corrugated roof with a red brick end stack. It has a 20th-century half-lit door in the centre, flanked by two-light casement windows, along with another similar window at the east end.
The adjoining barn is slightly lower and constructed of limewashed rubble masonry beneath a slate roof. Its front has double planked doors under a long timber lintel, with an additional single door to the left. The west gable end contains a small wood-framed opening in the apex, which may have originally featured timber mullions.
The interior of the house has been modernised. Entry is through the left door, leading directly to the stairs, with the living room to the left. A fireplace is located on the left wall, and former fireplace stairs are said to curve around to its north, although they are now covered. In the living room, there is one cross beam without chamfers, which has hooks for hanging meat.
Local climate
Pen-y-Pentre (aka The Old Factory House) sits in a wetter-than-average part of the UK, with an average of 1,120 mm of rain a year. This makes it wetter than 88% of listed buildings in the UK. Its exposure to wind-driven rain is greater than that of 78% of listed buildings.
It experiences an average of 51 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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