Nos 12 & 12a is a Grade II* listed building in the Brecon Beacons National Park local planning authority area, Wales. First listed on 16 January 1952. Shop - terrace.
Nos 12 & 12a
- WRENN ID
- crumbling-balcony-dock
- Grade
- II*
- Local Planning Authority
- Brecon Beacons National Park
- Constituency
- Brecon, Radnor and Cwm Tawe MP: David Chadwick (LD)
- Country
- Wales
- Date first listed
- 16 January 1952
- Type
- Shop - terrace
- Address
- Nos 12 & 12a, Powys
- OS grid reference
- SO 045 284
- Coordinates
- 51.9466, -3.38981
- Source
- Cadw listing
Description
Nos 12 and 12a is a former house that now serves as businesses with accommodation above. The building features stucco with a cornice and long-and-short quoins. The elevation facing the Bulwark has three storeys and seven bays, with sash windows set in moulded architraves. The second-floor windows have nine panes, while the others have twelve-pane sashes. On the ground floor, the central bay showcases a fine early 18th-century moulded wooden doorcase with fluted pilasters and a hood supported by carved enriched consoles, leading to an eight-panelled door. There are three windows to the left of the doorway and a modern shopfront to the right.
The roof of the rear range has two clusters of diagonal chimney stacks made of stone rubble, and there is a block with a hipped roof on the rear elevation, featuring overhanging eaves and sash windows. To the right, there is a two-storey southeast rear wing along Glamorgan Street, which has a steep slate roof and a tall chimney stack, with a single window on each floor. At the southeast end, there is a block at right angles; the gable of this wing facing Glamorgan Street has a rendered stack at the apex and windows at the northwest end of the gable, with a two-window elevation to the southeast.
Inside, the entrance hall has a fielded-panelled dado and moulded stop-chamfered ceiling beams, along with fielded panelled doors. The front ground floor room to the right features a fine enriched plaster ceiling from the early 18th century. The front ground floor room to the left has exposed beams, fielded panelled walls, shutters and doors, and a bolection moulded fireplace. At the rear of the entrance hall, there is a very fine 17th-century wooden staircase with turned balusters and elaborately carved newels. The upstairs chimney pieces date from the early to mid-17th century, featuring four-centred lintels and chamfers.
Local climate
Nos 12 & 12a sits in one of the wettest parts of the UK, with an average of 1,260 mm of rain a year. This makes it wetter than 93% of listed buildings in the UK. Its exposure to wind-driven rain is greater than that of 82% of listed buildings.
It experiences an average of 56 freeze-thaw cycles a year, more than 96% of listed buildings. Of these, 32 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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