Parish Boundary Stone is a Grade II listed building in the Hounslow local planning authority area, England. First listed on 31 July 2003. A C19 Boundary stone.

Parish Boundary Stone

WRENN ID
outer-fireplace-martin
Grade
II
Local Planning Authority
Hounslow
Constituency
Feltham and Heston MP: Seema Malhotra (Lab)
Country
England
Date first listed
31 July 2003
Type
Boundary stone
Address
Parish Boundary Stone, Staines Road
OS grid reference
TQ 116 747
Coordinates
51.46089, -0.39479
Source
Historic England listing

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

Description

This is a parish boundary marker located on Staines Road, dating from 1812. Made of Portland stone, it is an upright rectangular block with a square cross-section. The stone features a deeply sunk inscription that reads, "This is the Boundary of the Parish of HESTON 1812."

The marker was established following a parish boundary survey conducted by Heston Parish on May 7, 1812, to clearly define the division between Heston and Isleworth parishes.

Local climate

Parish Boundary Stone 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 86% of listed buildings.

It experiences an average of 29 freeze-thaw cycles a year, fewer than 67% of listed buildings. Of these, 12 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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