Rhiwlas Terrace is a Grade II listed building in the Powys local planning authority area, Wales. First listed on 22 March 1993. Terrace.
Rhiwlas Terrace
- WRENN ID
- low-granite-vermeil
- Grade
- II
- Local Planning Authority
- Powys
- Constituency
- Montgomeryshire and Glyndwr MP: Steve Witherden (Lab)
- Country
- Wales
- Date first listed
- 22 March 1993
- Type
- Terrace
- Address
- Rhiwlas Terrace, 5 High Street, Llanfyllin
- OS grid reference
- SJ 140 196
- Coordinates
- 52.76741, -3.27529
- Source
- Cadw listing
Description
Rhiwlas Terrace is a timber-framed terrace consisting of seven workers' cottages, featuring four pressed brick chimneys from the early 20th century, with the right chimney being taller to rise above the adjacent house. The cottages have a slate roof and are arranged in three mirrored pairs, with an additional house on the right. Each house has a single window on each floor. The large square-framed panels display one visible straight angle-brace, while others can be seen in old photographs. The central section has heavy timbers, while the end houses on the left have lighter timbers but maintain the same design. The end house on the right has even lighter timbers and a different frame pattern. Most of the cottages retain twelve-pane Yorkshire (horizontal) sash windows on each floor, and houses numbered 4 and 6 still have simple boarded doors.
Local climate
Rhiwlas Terrace sits in a wetter-than-average part of the UK, with an average of 960 mm of rain a year. This makes it wetter than 75% of listed buildings in the UK. Its exposure to wind-driven rain is greater than that of 61% of listed buildings.
It experiences an average of 45 freeze-thaw cycles a year, more than 86% of listed buildings. Of these, 25 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 2018
- 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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