The Duty Stone on District Boundary to North West of Golf Course is a Grade II listed building in the Hertsmere local planning authority area, England. First listed on 12 August 1985. Boundary marker.

The Duty Stone on District Boundary to North West of Golf Course

WRENN ID
pitched-quartz-harvest
Grade
II
Local Planning Authority
Hertsmere
Constituency
Hertsmere MP: Sir Oliver Dowden (Con)
Country
England
Date first listed
12 August 1985
Type
Boundary marker
Address
The Duty Stone on District Boundary to North West of Golf Course, Cranborne Road
OS grid reference
TL 243 027
Coordinates
51.70958, -0.20211
Source
Historic England listing

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

Description

The Duty Stone is a boundary marker located on the northeast side of Cranborne Road in Potters Bar, dating from 1851. This City of London Coal Duty Boundary Marker is made of ashlar and stands about 4 meters tall. It features an obelisk shape on a tapered base, complete with a plinth and cornice. The west face of the obelisk displays the City of London crest in relief, while the north face of the base is incised with '14 and 15 VIC/C146'. The stone is situated on the eastern side of the main line railway embankment, near the golf course.

Local climate

The Duty Stone on District Boundary to North West of Golf Course sits in one of the driest parts of the UK, with an average of 700 mm of rain a year. This makes it drier than 91% of listed buildings in the UK. Its exposure to wind-driven rain is lower than that of 90% of listed buildings.

It experiences an average of 33 freeze-thaw cycles a year, fewer than 54% 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.

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