London Coal Duty Boundary Marker at Tq 1164 9657 is a Grade II listed building in the Watford local planning authority area, England. First listed on 8 March 1991. Boundary marker.
London Coal Duty Boundary Marker at Tq 1164 9657
- WRENN ID
- muffled-grate-shade
- Grade
- II
- Local Planning Authority
- Watford
- Constituency
- Watford MP: Matt Turmaine (Lab)
- Country
- England
- Date first listed
- 8 March 1991
- Type
- Boundary marker
- Address
- London Coal Duty Boundary Marker at Tq 1164 9657, Colne Bridge
- OS grid reference
- TQ 116 965
- Coordinates
- 51.65684, -0.38748
- Source
- Historic England listing
Description
The London Coal Duty Boundary Marker, built in 1861 for the City of London, is a Grade II listed structure made of ashlar. It features a square plinth with a stepped tapered base and a cornice, topped by an obelisk that displays the City of London coat of arms in relief on the southeast face. The marker stands approximately 4 meters tall and was part of a system of boundary markers that defined the area where incoming coal was taxed. Originally located on the opposite side of the River Colne, it was repaired and relocated by Watford Borough Council in 1984.
Local climate
London Coal Duty Boundary Marker at Tq 1164 9657 sits in a drier-than-average part of the UK, with an average of 710 mm of rain a year. This makes it drier than 86% of listed buildings in the UK. Its exposure to wind-driven rain is lower than that of 85% of listed buildings.
It experiences an average of 31 freeze-thaw cycles a year, fewer than 61% of listed buildings. Of these, 15 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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