Lock Number 1 (Top Lock) is a Grade II listed building in the Birmingham local planning authority area, England. First listed on 14 October 1991. Lock.

Lock Number 1 (Top Lock)

WRENN ID
silver-cornice-poplar
Grade
II
Local Planning Authority
Birmingham
Constituency
Birmingham Perry Barr MP: Ayoub Khan (Ind)
Country
England
Date first listed
14 October 1991
Type
Lock
Address
Lock Number 1 (Top Lock), Tame Valley Canal B44
OS grid reference
SP 059 927
Coordinates
52.53263, -1.91433
Source
Historic England listing

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

Description

Lock Number 1, also known as the Top Lock, is a lock on the Tame Valley Canal, built between 1841 and 1844. It features a brick chamber and wing walls topped with stone copings. The lock has a single wooden top gate equipped with two sets of mechanical ground paddle gearing. There is a brick heel grip platform and double wooden bottom gates, each with a single set of mechanical gate paddle gearing, along with two brick heel grip platforms. Additionally, the lock includes a set of original ladders with iron rungs located on the bottom wing walls, and the wing walls are fitted with iron rubbing curbs.

Local climate

Lock Number 1 (Top Lock) receives an average of 780 mm of rain a year. This makes it drier than 60% of listed buildings in the UK. Its exposure to wind-driven rain is lower than that of 76% of listed buildings.

It experiences an average of 39 freeze-thaw cycles a year, more than 75% of listed buildings. Of these, 19 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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Nearby listed buildings

  1. Cottage Immediately North of Lock Number 1 (Top Lock) Grade II 8 m
  2. Lock Number 2 Grade II 121 m
  3. Perry Barr Locks Bridge Grade II 158 m
  4. Clifton Cinema Grade II 341 m
  5. Bridge Over the River Tame Opposite Hamstead Station Grade II 1.1 km
  6. Bridge Over the River Tame at the North End of Hamstead Hill Grade II 1.1 km
  7. Gates and Gatepiers to the Church of St John the Evangelist Grade II 1.2 km
  8. Anglican Church of St John the Evangelist Grade II 1.2 km
  9. 2/15, 17 and 15, Church Road Grade II 1.3 km
  10. Yew Tree Cottages Grade II 1.4 km