Trergelli is a Grade II listed building in the Brecon Beacons National Park local planning authority area, Wales. First listed on 1 February 1988. House.
Trergelli
- WRENN ID
- hallowed-paling-laurel
- Grade
- II
- Local Planning Authority
- Brecon Beacons National Park
- Constituency
- Brecon, Radnor and Cwm Tawe MP: David Chadwick (LD)
- Country
- Wales
- Date first listed
- 1 February 1988
- Type
- House
- Address
- Trergelli, 2 Oxford Road, Hay, Powys
- OS grid reference
- SO 229 422
- Coordinates
- 52.07313, -3.12565
- Source
- Cadw listing
Description
Trergelli is a symmetrical, two-storey building featuring a five-window front made of coursed rubble, with a plinth and a basement at No 2. It has a slate roof, wide boarded eaves, and brick chimney stacks located at the center of both houses. The front includes 12-pane sash windows with voussoirs and a blind central window. There is a raised twin central doorcase with pilasters and panelled reveals, leading to 6-pane doors with overlights. To the right, steps lead down to a boarded basement door with a drip board.
The gable ends have casement attic windows, with the right side being colour washed. The almost symmetrical rear features wide eaves over slightly set back outer bays. It includes various windows, such as small pane sashes and small pane staircase windows in the center, as well as French windows to the right rear above the basement.
The original contemporary railings are still retained at the front.
Local climate
Trergelli receives an average of 900 mm of rain a year. This makes it wetter than 67% of listed buildings in the UK. Its exposure to wind-driven rain is lower than that of 54% of listed buildings.
It experiences an average of 52 freeze-thaw cycles a year, more than 93% of listed buildings. Of these, 29 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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