Thornton House is a Grade II listed building in the Brecon Beacons National Park local planning authority area, Wales. First listed on 1 February 1988. House. 2 related planning applications.
Thornton House
- WRENN ID
- cold-lancet-ochre
- 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
- Thornton House, 7 Bear Street, Hay, Powys, HR3 5AN
- OS grid reference
- SO 231 423
- Coordinates
- 52.07409, -3.12331
- Source
- Cadw listing
Description
Thornton House is a 2-storey building with a roughcast front and three windows. It features a steep slate roof with dentil eaves and a rubble end chimney stack that has weathercoursing. The first floor has 12-pane sash windows, while the ground floor has shallow 4-pane horned sashes. The entrance is offset on the ground floor and is adorned with a broad bracket hood, reeded pilasters, panelled reveals, and a 6-panelled door. The gable ends to the right are made of whitewashed rubble and have a dripmould over the attic window.
To the right, there is a rubble garden revetment wall that retains railings. The building is said to retain its original roof construction and internal framed partitions.
Local climate
Thornton House 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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- Full EPC report — heating system, energy costs, size, glazing, construction etc.
- Sale history — 1 transaction since 2024
- Related listed building consents — 2 applications
- 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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