Paris House including Gwilliam is a Grade II listed building in the Brecon Beacons National Park local planning authority area, Wales. First listed on 1 February 1988. Shop and residence.
Paris House including Gwilliam
- WRENN ID
- hidden-screen-clover
- 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
- Shop and residence
- Address
- Paris House including Gwilliam, 15 High Town, Hay, Powys
- OS grid reference
- SO 229 423
- Coordinates
- 52.07442, -3.12563
- Source
- Cadw listing
Description
Paris House, which includes Gwilliam, is a three-storey building from the late 19th century, featuring a two-window whitewashed rubble front that has earlier 19th-century origins. The upper floor is believed to be timber framed. It has a slate roof with boarded eaves and a rubble chimney stack that has been heightened in brick at the right end, along with a brick stack at the rear. The building has sash windows with marginal glazing bars and keystones.
The modern shop front includes a splayed central entrance and an imitation marble plinth. On the left end, there is a three-storey and attic section that is roughcast, with a casement window in the attic and 12-pane sash windows below, situated above a narrow ground floor lean-to. This lean-to has a plinth that extends back from the splayed shop window, similar to the main front, and features a 9-pane sash window beside a half-glazed door.
The rear of the building, facing Market Street, is finished in scribed render and includes a plinth and a slightly splayed out ground floor. Small pane sash windows are offset towards Market Hall.
Local climate
Paris House including Gwilliam 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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