Garnlwyd is a Grade II listed building in the Brecon Beacons National Park local planning authority area, Wales. First listed on 28 October 2005. Farmhouse.
Garnlwyd
- WRENN ID
- hallowed-stronghold-cream
- Grade
- II
- Local Planning Authority
- Brecon Beacons National Park
- Constituency
- Brecon, Radnor and Cwm Tawe MP: David Chadwick (LD)
- Country
- Wales
- Date first listed
- 28 October 2005
- Type
- Farmhouse
- Address
- Garnlwyd, Heol Senni, Maescar, Powys
- OS grid reference
- SN 926 211
- Coordinates
- 51.87866, -3.56102
- Source
- Cadw listing
Description
Garnlwyd is a farmhouse and outbuilding built in line, constructed from whitewashed rubble stone. The house, located on the right, features a slate roof, a whitewashed stone chimney at the left end, and a ridge chimney towards the right end. The outbuilding to the left has a slightly lower stone-tiled roof.
The house has small first-floor windows located under the eaves, a central 6-pane window with a timber lintel, and a 4-pane window to the right. The ground floor includes a right cambered-headed 4-pane window, a central door, and a 9-pane window to the left, also with a timber lintel. The windows are of the Brecon hopper type. A whitewashed stone wall extends from the facade in line with the right chimney, connecting to a whitewashed single-storey outbuilding that has a slate roof.
The main outbuilding to the left features two stable doors with cambered heads and a square loft light above under the eaves, along with a small cambered-headed barn door to the left. There is a single-storey range at the left end with a door and double doors, topped with a corrugated iron roof.
The interior has not been inspected.
Local climate
Garnlwyd sits in one of the wettest parts of the UK, with an average of 1,410 mm of rain a year. This makes it wetter than 97% of listed buildings in the UK. Its exposure to wind-driven rain is greater than that of 90% of listed buildings.
It experiences an average of 55 freeze-thaw cycles a year, more than 95% of listed buildings. Of these, 31 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
Matched applications, energy data and sale records are assembled automatically and may contain errors. Flag incorrect data.
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