Brynheulog is a Grade II listed building in the Brecon Beacons National Park local planning authority area, Wales. First listed on 26 August 2005. House.
Brynheulog
- WRENN ID
- low-vault-woodpecker
- Grade
- II
- Local Planning Authority
- Brecon Beacons National Park
- Constituency
- Brecon, Radnor and Cwm Tawe MP: David Chadwick (LD)
- Country
- Wales
- Date first listed
- 26 August 2005
- Type
- House
- Address
- Brynheulog, Trecastle, Llywel, Powys
- OS grid reference
- SN 880 291
- Coordinates
- 51.94955, -3.62978
- Source
- Cadw listing
Description
Brynheulog is an attached house dating from the 19th century, constructed of painted rubble stone with slate roofs. The building consists of two sections that step downhill. The upper section features a one-window range with a large rendered stack on the left end and flat eaves that continue with those of the adjacent Three Horseshoes. On the first floor, there is a horned 6-pane sash window above a tall doorway on the ground floor that has a cambered head. The stone voussoirs in the wall above indicate that this doorway may have replaced a window.
The main range to the left is double fronted, with two similar 6-pane sash windows on each floor, flanking a central sash window above a blocked doorway. The windows have stone sills and cambered heads. The interior has not been inspected.
Local climate
Brynheulog 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
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