London Coal Duty Marker on Verge Near Number 67 is a Grade II listed building in the St Albans local planning authority area, England. Marker.

London Coal Duty Marker on Verge Near Number 67

WRENN ID
scattered-spandrel-yarrow
Grade
II
Local Planning Authority
St Albans
Constituency
St Albans MP: Daisy Cooper (LD)
Country
England
Type
Marker
Address
London Coal Duty Marker on Verge Near Number 67, Harper Lane, London Colney
OS grid reference
TL 172 023
Coordinates
51.70764, -0.30469
Source
Historic England listing

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

Description

The London Coal Duty Marker, located on the verge near number 67 on Harper Lane in London Colney, was erected between 1861 and 1862 to indicate the limit of coal duty in the London area. This cast iron post stands about one and a half metres high and has a square plan with chamfered corners. The capital features roll-mouldings and displays the arms of the City of London on its front face. Additionally, there is raised lettering on the front face of the pier that reads "24 VICT." The marker was cast by Henry Grissell iron works at Regents Canal in London.

Local climate

London Coal Duty Marker on Verge Near Number 67 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 89% of listed buildings in the UK. Its exposure to wind-driven rain is lower than that of 87% 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 sale records on file
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  • 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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