Trent and Mersey Canal Colwich Lock Number 21 is a Grade II listed building in the Stafford local planning authority area, England. First listed on 10 February 1995. Canal lock. 4 related planning applications.

Trent and Mersey Canal Colwich Lock Number 21

WRENN ID
empty-transept-myrtle
Grade
II
Local Planning Authority
Stafford
Constituency
Stone, Great Wyrley and Penkridge MP: Sir Gavin Williamson (Con)
Country
England
Date first listed
10 February 1995
Type
Canal lock
OS grid reference
SK 009 211
Coordinates
52.78764, -1.98809
Source
Historic England listing

Also on this page: sale history · related consents · flood risk · radon risk · weather exposure · detailed attributes ↓

Description

Colwich Lock Number 21 is a narrow lock on the Trent and Mersey Canal, built between 1766 and 1770, with some materials and movable parts replaced later. It was designed by James Brindley, the Surveyor General. The lock features a brick chamber with stone coping and quoins. It has a single steel top gate and double steel bottom gates, both installed in the late 20th century. A wooden plank footbridge crosses the tail of the lock, and there is an off-side weir. The Trent and Mersey Canal itself was constructed between 1766 and 1777.

Local climate

Trent and Mersey Canal Colwich Lock Number 21 receives an average of 820 mm of rain a year. This makes it wetter than 52% of listed buildings in the UK. Its exposure to wind-driven rain is lower than that of 68% of listed buildings.

It experiences an average of 40 freeze-thaw cycles a year, more than 77% 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
  • Sale history — 2 transactions since 1995
  • Related listed building consents — 4 applications
  • 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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