11 Heol Penrallt is a Grade II listed building in the Powys local planning authority area, Wales. First listed on 19 January 1952. House.

11 Heol Penrallt

WRENN ID
hushed-forge-thyme
Grade
II
Local Planning Authority
Powys
Constituency
Montgomeryshire and Glyndwr MP: Steve Witherden (Lab)
Country
Wales
Date first listed
19 January 1952
Type
House
Address
11 Heol Penrallt, Machynlleth, SY20 8AG
OS grid reference
SH 745 008
Coordinates
52.59092, -3.85347
Source
Cadw listing

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

Description

11 Heol Penrallt is a mid to late 19th century, three-storey building with a three-window front, finished in scribed render and topped with a steep slate roof. It features bracket eaves and a red brick chimney stack on the right side. The windows are round arched and have horned four-pane sashes. To the right, there is a two-light round-headed shop window, which is flanked by pilasters and has a bracketed hood above a quatrefoil band, with a trefoil design in the central spandrel. The central porch is supported by cast iron piers with lightly foliated capitals and has an ironwork parapet adorned with anthemion-like designs. The round arched doorway features a four-panel door, with the upper two panels also being round arched.

Local climate

11 Heol Penrallt sits in one of the wettest parts of the UK, with an average of 1,320 mm of rain a year. This makes it wetter than 95% of listed buildings in the UK. Its exposure to wind-driven rain is greater than that of 93% of listed buildings.

It experiences an average of 31 freeze-thaw cycles a year, fewer than 62% of listed buildings. Of these, 15 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.

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