Foundry House is a Grade II listed building in the Powys local planning authority area, Wales. First listed on 10 April 1989. House.
Foundry House
- WRENN ID
- sheer-ember-tide
- Grade
- II
- Local Planning Authority
- Powys
- Constituency
- Montgomeryshire and Glyndwr MP: Steve Witherden (Lab)
- Country
- Wales
- Date first listed
- 10 April 1989
- Type
- House
- Address
- Foundry House, Llanidloes, SY18 6AY
- OS grid reference
- SN 956 845
- Coordinates
- 52.44852, -3.53714
- Source
- Cadw listing
Description
Foundry House was possibly built as the foundry manager's house. It is a 2-storey building with a basement and features a 5-window red brick front with blue brick banding and a plinth. The hipped slate roof has bracket eaves and blue brick chimney stacks. The openings are cambered, with blue and red brick gauged voussoirs. The ground floor windows are offset to the right, and there is one blocked opening at the left end. The windows are horned 4-pane sash windows, and there are two half-glazed doors, one located at the extreme right end. Hoods are present over the basement windows. The right end of the building is made of brick. The left end is 3-storey with 2 windows, including the 1-window No 17. The windows of Foundry House, mainly sash, are deeper, with the ground floor featuring a 12-pane casement beside a half-glazed door. No 17 has 6 and 12-pane sashes with a 4-panel door.
Both forecourts have contemporary iron railings that are arched at the top, similar to those on Nos 1 to 16. These railings sweep around the corner and step up to run along the front of Foundry House and Gorn View.
Local climate
Foundry House sits in one of the wettest parts of the UK, with an average of 1,180 mm of rain a year. This makes it wetter than 90% of listed buildings in the UK. Its exposure to wind-driven rain is greater than that of 82% of listed buildings.
It experiences an average of 53 freeze-thaw cycles a year, more than 94% of listed buildings. Of these, 32 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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- No EPC on record for this property
- 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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