Obelisk on South Bank in Garden of Number 17 Moor Lane is a Grade II listed building in the Three Rivers local planning authority area, England. First listed on 3 October 1985. Obelisk.

Obelisk on South Bank in Garden of Number 17 Moor Lane

WRENN ID
knotted-chalk-jet
Grade
II
Local Planning Authority
Three Rivers
Constituency
South West Hertfordshire MP: Mr Gagan Mohindra (Con)
Country
England
Date first listed
3 October 1985
Type
Obelisk
Address
Obelisk on South Bank in Garden of Number 17 Moor Lane, Grand Union Canal, Batchworth
OS grid reference
TQ 064 940
Coordinates
51.63536, -0.46293
Source
Historic England listing

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

Description

The obelisk, dated 1825, is located in a pond on the south bank of the Grand Union Canal in the garden of Number 17 Moor Lane. It serves as a water gauge and was commissioned by the Company of Grand Junction Canal. The structure is made of stone and features a moulded base and cornice, with shallow pediments positioned about one-third of the way up the obelisk, which stands approximately 2.5 meters tall. Two faces of the obelisk are inscribed, documenting an agreement between John Dickinson of Batchworth Mill, the landowner R. Williams of Moor Park, and the Grand Junction Canal, which established the water level at this location following a prolonged dispute.

Local climate

Obelisk on South Bank in Garden of Number 17 Moor Lane 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 88% of listed buildings.

It experiences an average of 28 freeze-thaw cycles a year, fewer than 69% of listed buildings. Of these, 13 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
  • Sale history — 1 transaction since 2011
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  • Radon risk assessment
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