15-15a is a Grade II listed building in the Denbighshire local planning authority area, Wales. First listed on 16 May 1978. Commercial building.

15-15a

WRENN ID
stubborn-hearth-dew
Grade
II
Local Planning Authority
Denbighshire
Constituency
Clwyd East MP: Becky Gittins (Lab)
Country
Wales
Date first listed
16 May 1978
Type
Commercial building
Address
15-15a, Ruthin, LL15 1AE
OS grid reference
SJ 124 582
Coordinates
53.11404, -3.30893
Source
Cadw listing

Also on this page: flood risk · radon risk · weather exposure · detailed attributes ↓

Description

15-15A is a three-storey building with a four-window block, which includes a shop front on the left. The exterior is roughcast over brick with smooth rendered dressings, topped by a slate roof with brick end stacks, all resting on a rendered plinth. Architectural details feature raised sill bands and quoin strips.

On the first floor, there are 12-pane hornless sash windows with narrow glazing bars, set in raised eared surrounds with keystones. To the right of the ground floor, there is a similar window. The second floor has late 20th-century two-light wooden windows located just under the eaves, with raised reveals. The entrance to No 15 is positioned to the right of the centre and features a half-glazed panelled door, which may have had wooden panels replaced with frosted glass. This entrance is accessed by two stone steps and is sheltered by a flat cantilevered porch canopy that has a moulded and panelled underside.

To the left, the shop front showcases mid to late 20th-century details, including plain pilasters that define the openings and support an angled fascia, possibly concealing an earlier cornice. The shop features a two-panel wooden door with an overlight, and to the right of this door is a two-light shop window. On the left side, there is an additional doorway, likely leading to a through-passage, which is secured by a cast iron gate with plain uprights and scrollwork on the lock-rail, with boarded sections behind.

At the rear, the building has a four-window layout, primarily featuring three-light wooden or uPVC casements, with single lights located at the far right. The windows are positioned at varying levels, and the second window from the left has a segmental head. The interior has not been seen.

Local climate

15-15a sits in a wetter-than-average part of the UK, with an average of 960 mm of rain a year. This makes it wetter than 75% of listed buildings in the UK. Its exposure to wind-driven rain is lower than that of 60% of listed buildings.

It experiences an average of 38 freeze-thaw cycles a year, more than 72% of listed buildings. Of these, 21 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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  • 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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