Rock Cottage is a Grade II listed building in the Brecon Beacons National Park local planning authority area, Wales. First listed on 27 July 2000. House.
Rock Cottage
- WRENN ID
- muffled-threshold-mist
- Grade
- II
- Local Planning Authority
- Brecon Beacons National Park
- Constituency
- Monmouthshire MP: Catherine Fookes (Lab)
- Country
- Wales
- Date first listed
- 27 July 2000
- Type
- House
- Address
- Rock Cottage, Gilwern, Llanelly, Monmouthshire, NP7 0DD
- OS grid reference
- SO 245 147
- Coordinates
- 51.82592, -3.09602
- Source
- Cadw listing
Description
Rock Cottage is a 19th-century building constructed from rock-faced and coursed red sandstone rubble, topped with slate roofs. It features deep gables adorned with decorative carved bargeboards. The gable chimneys sit on low plinths and have paired diagonal shafts, with one shaft truncated. The striking garden elevation consists of three bays and two storeys, with a central section that rises an extra storey, resembling a tower above the ridge level. This central part is rectangular in plan and projects at both the front and rear, featuring angled corners and a hipped roof with angled corners above jettied upper courses of masonry. The attic window in the centre bay is a 2:2:2 casement with arched lights. The first floor has cross-windows with paired 8-pane sashes, and the centre window is topped with a shallow gable and a decorative carved bargeboard. The ground floor windows on the left and right are cross-windows with paired 4-over-6 sashes, each with Tudor hoodmoulds. The central entrance features a four-centred doorway. The interior was not available for inspection during the resurvey in October 1999.
Local climate
Rock Cottage sits in a wetter-than-average part of the UK, with an average of 1,040 mm of rain a year. This makes it wetter than 83% of listed buildings in the UK. Its exposure to wind-driven rain is greater than that of 75% of listed buildings.
It experiences an average of 48 freeze-thaw cycles a year, more than 89% of listed buildings. Of these, 24 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.
- Sale history — 7 transactions since 1998
- 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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