Maengwyn House is a Grade II listed building in the Powys local planning authority area, Wales. First listed on 19 January 1952. House.
Maengwyn House
- WRENN ID
- gilded-rubble-khaki
- 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
- Maengwyn House, 117 Heol Maengwyn, Machynlleth
- OS grid reference
- SH 750 008
- Coordinates
- 52.59108, -3.84666
- Source
- Cadw listing
Description
Maengwyn House is a two-storey building, likely built in the mid-19th century, featuring a three-plus-one window arrangement on its scribed stucco facade. The elevation includes rusticated quoins and a plinth. The slate roof has bracket eaves and stock brick chimney stacks located midway down both the front and rear roof pitches. The windows are horned sash style with horizontal glazing bars, architraves, and bracket cills, while the ground floor also has bracket cornices.
At the center of the house is a Doric porch supported by fluted columns, with panelled reveals and a six-panel door. The left gable end has four-pane sash windows, while the right gable is made of rubble and features a chimney breast towards the front, along with a lower cross range behind it. The rear of the house has a shallow gable projection and a bay window that is covered in ivy, also with bracket eaves.
The front of the property is enclosed by spearhead railings, with rubble boundary walls on either side. Inside, the hallway features ribbed plasterwork, and it is said to retain a fine chimneypiece in one of the public rooms.
Local climate
Maengwyn House sits in one of the wettest parts of the UK, with an average of 1,280 mm of rain a year. This makes it wetter than 94% of listed buildings in the UK. Its exposure to wind-driven rain is greater than that of 91% of listed buildings.
It experiences an average of 38 freeze-thaw cycles a year, more than 73% of listed buildings. Of these, 20 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.
- No sale records on file
- 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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