19 Heol Maengwyn is a Grade II listed building in the Powys local planning authority area, Wales. First listed on 19 November 1990. A C19 House.
19 Heol Maengwyn
- WRENN ID
- drifting-lime-foxglove
- 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
- 19 Heol Maengwyn, Machynlleth
- OS grid reference
- SH 746 008
- Coordinates
- 52.59073, -3.85213
- Source
- Cadw listing
Description
19 Heol Maengwyn is a mid to late 19th century building that features a symmetrical three-storey, three-window rendered front. It has rusticated quoins, a plinth, and a channelled ground floor. The building is topped with a slate roof and has an end chimney stack, along with boarded eaves. The recessed four-pane horned sash windows are framed with architraves. There is an overall cornice at the ground floor, which includes panelled end pilasters decorated with bosses, and an anthemion pattern on the left-hand pilaster. The central glazed door is flanked by fixed glazed windows with blinds and window box holders, and it is also surrounded by panelled pilasters and a bracket cornice.
Local climate
19 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 — 1 transaction since 2021
- 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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