46 High St. (Great Oak St.) is a Grade II listed building in the Powys local planning authority area, Wales. First listed on 10 April 1989. A C19 Commercial.
46 High St. (Great Oak St.)
- WRENN ID
- knotted-grate-kestrel
- Grade
- II
- Local Planning Authority
- Powys
- Constituency
- Montgomeryshire and Glyndwr MP: Steve Witherden (Lab)
- Country
- Wales
- Date first listed
- 10 April 1989
- Type
- Commercial
- Address
- 46 High St. (Great Oak St.), Llanidloes
- OS grid reference
- SN 955 844
- Coordinates
- 52.44786, -3.53838
- Source
- Cadw listing
Description
46 High Street, also known as Great Oak Street, is a mid-19th century building inspired by late Georgian architecture. It is a three-storey structure featuring one-window fronts arranged in reflected pairs. The front is finished in scribed cement render with a plinth and quoins, topped by an overall slate roof with wide bracket eaves and blue brick chimney stacks. The windows are horned 6-pane sash types, while most shop windows are 4-pane with cornices. There are modern alterations to No 19, and Alderson's, located between Nos 19 and 20, has a broader full-width shop front with a plate glass window and end pilasters beneath an overall cornice. The doors are part glazed, except for No 20.
No 17 extends around the corner into High Street, displaying a similar scribed cement render elevation, horned 6-pane sash windows, and a modern small shop window. Nos 45 and 46 High Street are adjacent to the left, beyond a round arched opening that leads to the passage for the rear yard. This arch features an architrave, keystone, and a boarded door. The right-hand gable end and rear elevations are slate hung and include casement windows, along with a modern single-storey brick cross range. There is a tall brick stack at the rear of Nos 45 and 46, which also has some metal frame casement windows. The first and ground floors are constructed of rubble with a brick lean-to.
The cobbled yard is enclosed to the south and west by ranges of brick outbuildings that have small pane metal frame windows with cambered heads. The western outbuilding serves as the cross range for No 22 Great Oak Street.
Local climate
46 High St. (Great Oak St.) 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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- Full EPC report — heating system, energy costs, size, glazing, construction etc.
- Sale history — 2 transactions since 2005
- 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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