40 High Street is a Grade II listed building in the Powys local planning authority area, Wales. First listed on 22 March 1993. Shop.

40 High Street

WRENN ID
rusted-banister-aspen
Grade
II
Local Planning Authority
Powys
Constituency
Montgomeryshire and Glyndwr MP: Steve Witherden (Lab)
Country
Wales
Date first listed
22 March 1993
Type
Shop
Address
40 High Street, Llanfyllin
OS grid reference
SJ 142 195
Coordinates
52.7663, -3.27302
Source
Cadw listing

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

Description

40 High Street is a two-storey building featuring a two-window shop front. The exterior is rendered over local brick with a slate roof and small rectangular brick chimneys at each end. The second floor has two almost square windows fitted with six-pane hornless sash glazing and stone sills. The first floor contains two twelve-pane hornless sash windows. On the ground floor, to the left, there is a round-headed doorway with an overlight and a modern door. To the right, there is a later 19th-century shopfront with a central door that is partly glazed and has an overlight, flanked by shop windows on either side. The window frames have colonettes that support round-headed arches, with two arches for each front and one for the door recess. The shopfront features classically derived pilasters at the ends, which support volutes and an entablature with a cornice above.

The gable end to the right has two windows on each floor. The second floor features broad-proportioned eight-pane hornless sash windows, while the first floor has sixteen-pane hornless sash windows. The ground floor has replacement glazing that respects the original openings. At the rear, there is a two-storey wing, which is known to have been five cottages around 1670. The timber framing is visible in the gable, with some exposed square panels, while the walls are generally rendered.

Local climate

40 High Street 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 greater than that of 61% of listed buildings.

It experiences an average of 45 freeze-thaw cycles a year, more than 86% of listed buildings. Of these, 25 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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