Lock 33 Grand Union Canal is a Grade II listed building in the Buckinghamshire local planning authority area, England. First listed on 15 October 1984. Canal lock.

Lock 33 Grand Union Canal

WRENN ID
fallen-marble-moth
Grade
II
Local Planning Authority
Buckinghamshire
Constituency
Aylesbury MP: Laura Kyrke-Smith (Lab)
Country
England
Date first listed
15 October 1984
Type
Canal lock
Address
Lock 33 Grand Union Canal, Ivinghoe
OS grid reference
SP 933 182
Coordinates
51.85541, -0.64565
Source
Historic England listing

Also on this page: flood risk · radon risk · weather exposure · detailed attributes ↓

Description

Lock 33 on the Grand Union Canal is a canal lock built around 1800, with later repairs. It features brick retaining walls, some of which are rendered, topped with stone coping. The lock has two pairs of gates equipped with sluices and winding gear, with the quoins dated 1869 and 1872. At the northern end, there are brick steps and several cast iron bollards. Additionally, there are side ponds with sluices and winding gear dated to the late 19th century.

Local climate

Lock 33 Grand Union Canal sits in a drier-than-average part of the UK, with an average of 730 mm of rain a year. This makes it drier than 77% of listed buildings in the UK. Its exposure to wind-driven rain is lower than that of 79% of listed buildings.

It experiences an average of 36 freeze-thaw cycles a year, more than 64% of listed buildings. Of these, 17 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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  1. Bridge Number 122 Grand Union Canal Grade II 23 m
  2. House at Lock 33 Grand Union Canal Grade II 38 m
  3. Pumping Station at Lock 33 Grand Union Canal Grade II 55 m
  4. Bridge Number 123 Grand Union Canal Grade II 706 m
  5. Lock Keepers House at Lock Number 34 Grand Union Canal Grade II 1.1 km
  6. Lock Number 34 Grand Union Canal Grade II 1.1 km
  7. Little Seabrook Farmhouse Grade II 1.2 km
  8. Church of St Giles Grade II* 1.2 km
  9. Lock 31 Grand Union Canal Grade II 1.3 km
  10. Lock Keepers House at Lock 31 Grand Union Canal Grade II 1.3 km