Rock 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. 1 related planning application.
Rock House
- WRENN ID
- salt-postern-bistre
- 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
- Rock House, Hay-On-Wye, Hay, Powys, HR3 5BG
- OS grid reference
- SO 229 426
- Coordinates
- 52.07683, -3.12517
- Source
- Cadw listing
Description
Rock House is a Gothic-style building from the 19th century, featuring three storeys and a three-window facade made of rock-faced rubble. The design highlights a prominent central bay and full-height pilasters at each end. The roof is slate with wide boarded eaves, and there are rubble chimney stacks at the ends, with the right stack extended in stock brick.
The building showcases Tudor stone labels above Gothic-style small pane windows. The first floor has paired casements in the outer bays and a narrow fixed window in the center. A similar window is located on the ground floor to the right. The entrance features a four-centred arch with a stone bracketed hood and a boarded door. To the left of the entrance is a broader fixed glazed window in a similar style, topped with a concrete lintel. The right side of the building is finished in cement render, and there is a lean-to extension at the modernized rear.
An unusually grand former rear entrance is preserved within the kitchen extension, which dates from around 1970. This entrance includes a doorcase with panelled pilasters and reveals. Inside, there are stone fireplaces and a cellar that contains a well.
Local climate
Rock 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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- No EPC on record for this property
- No sale records on file
- Related listed building consents — 1 application
- 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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