Top Lock is a Grade II listed building in the Powys local planning authority area, Wales. First listed on 29 February 1996. Hall.
Top Lock
- WRENN ID
- standing-brass-dock
- Grade
- II
- Local Planning Authority
- Powys
- Constituency
- Montgomeryshire and Glyndwr MP: Steve Witherden (Lab)
- Country
- Wales
- Date first listed
- 29 February 1996
- Type
- Hall
- Address
- Top Lock, Pool Quay, Welshpool
- OS grid reference
- SJ 256 116
- Coordinates
- 52.69701, -3.10226
- Source
- Cadw listing
Description
Top Lock is a brick-lined lock chamber featuring stone copings. It has timber gates that were replaced in the 1980s. The lock includes cast-iron lock ground-sluice controls, likely introduced by G W Buck, who was the Montgomeryshire Canal Eastern Branch Engineer between 1819 and 1831. There is a brick retaining wall that supports the platform above the falling tow-path to the northeast of the lock, as well as a retaining wall on the high western bank that connects the lock chamber to bridge No. 111, which is located immediately to the north. Additionally, there is a small brick hut on the western side of the lock.
Local climate
Top Lock receives an average of 840 mm of rain a year. This makes it wetter than 55% of listed buildings in the UK. Its exposure to wind-driven rain is lower than that of 61% of listed buildings.
It experiences an average of 42 freeze-thaw cycles a year, more than 80% of listed buildings. Of these, 21 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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