Former Canal Warehouse is a Grade II listed building in the Powys local planning authority area, Wales. First listed on 21 August 1995. House.
Former Canal Warehouse
- WRENN ID
- proud-clay-lake
- Grade
- II
- Local Planning Authority
- Powys
- Constituency
- Montgomeryshire and Glyndwr MP: Steve Witherden (Lab)
- Country
- Wales
- Date first listed
- 21 August 1995
- Type
- House
- Address
- Former Canal Warehouse, Garthmyl, Berriew
- OS grid reference
- SO 194 992
- Coordinates
- 52.58478, -3.19053
- Source
- Cadw listing
Description
The former canal warehouse is a two-storey building raised over a basement, constructed from rough random rubble with brick dressings and a slate roof featuring brick end wall stacks. It has a three-window range with a central boarded and panelled door that is accessed by steps leading up to a terrace, which marks the rear ground level of the canal wharf and is enclosed by cast-iron rails. The flanking windows, dating from the conversion to a house around 1850, are two-light casements with margin-lights, and all lower openings have single-ring cambered brick heads. The upper windows are similar in style. A dentilled eaves band adds detail to the roofline.
To the right of the main house is a lower building made of painted brick, which served as the original dwelling and weighbridge office. This original dwelling is located at the upper level and is partly built over a continuation of the terrace wall in front of the former warehouse. The building has a two-unit plan with a central chimney. Below, there is a small office with a doorway to the right and a two-light metal casement window with a cambered head.
Local climate
Former Canal Warehouse receives an average of 900 mm of rain a year. This makes it wetter than 67% of listed buildings in the UK. Its exposure to wind-driven rain is greater than that of 58% of listed buildings.
It experiences an average of 42 freeze-thaw cycles a year, more than 81% of listed buildings. Of these, 23 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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