33 Heol Maengwyn is a Grade II listed building in the Powys local planning authority area, Wales. First listed on 19 November 1990. House.

33 Heol Maengwyn

WRENN ID
tilted-paling-crow
Grade
II
Local Planning Authority
Powys
Constituency
Montgomeryshire and Glyndwr MP: Steve Witherden (Lab)
Country
Wales
Date first listed
19 November 1990
Type
House
Address
33 Heol Maengwyn, Machynlleth
OS grid reference
SH 746 008
Coordinates
52.59074, -3.85144
Source
Cadw listing

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

Description

33 Heol Maengwyn is a two-storey building with an attic and a single-window rendered front, featuring a plinth. It is part of a mirrored pair with No 35. The building has a slate roof and a red brick chimney stack located to the right of the center. Both Nos 33 and 35 have gables topped with tall finials, while No 37 features a splayed two-storey oriel window, also with a finial, above the shop front. The windows are horned four-pane sash glazing. The entrances to Nos 33 and 35 have twinned, panelled doors with an overall bracketed label.

Inside, the original roof structure can be seen in the attic, and a close-studded gable separates Nos 35 and 37. Some timber panelled partitions are still intact.

Local climate

33 Heol Maengwyn 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.

More on this building

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  • Full EPC report — heating system, energy costs, size, glazing, construction etc.
  • Sale history — 2 transactions since 2015
  • 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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  7. 34 Heol Maengwyn Grade II 33 m
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