Boundary Stone (Old London Stone) , Upnor is a Grade II listed building in the Medway local planning authority area, England. First listed on 14 November 1986. Boundary stone. 1 related planning application.

Boundary Stone (Old London Stone) , Upnor

WRENN ID
over-bonework-oak
Grade
II
Local Planning Authority
Medway
Constituency
Rochester and Strood MP: Lauren Edwards (Lab)
Country
England
Date first listed
14 November 1986
Type
Boundary stone
Address
Boundary Stone (Old London Stone) , Upnor, The London Stone, Lower Upnor, Frindsbury Extra, Kent, ME2 4UP
OS grid reference
TQ 762 712
Coordinates
51.41272, 0.53234
Source
Historic England listing

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

Description

The boundary stone, dated to the 18th century, is located behind a later obelisk in Upnor. It is made from a single square pillar of stone with a pyramidal top, standing 1.2 meters high. The stone is inscribed with the date 1204 and the phrase 'GOD PRESERVE THE CITY OF LONDON'.

Local climate

Boundary Stone (Old London Stone) , Upnor sits in a drier-than-average part of the UK, with an average of 720 mm of rain a year. This makes it drier than 84% of listed buildings in the UK. Its exposure to wind-driven rain is lower than that of 74% of listed buildings.

It experiences an average of 23 freeze-thaw cycles a year, fewer than 76% of listed buildings. Of these, 11 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
  • Related listed building consents — 1 application
  • 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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  1. Obelisk (New London Stone), Upnor Grade II 3 m
  2. Ship's Figurehead from the Arethusa Grade II 35 m
  3. Wall Extending NE from Upnor Castle Along the River Medway Grade II 526 m
  4. Building Lu001 (Former B Magazine), Upnor Depot Grade II* 549 m
  5. WWI Sentry Post at the Lower Upnor Ordnance Depot Grade II 651 m
  6. Traverse to former Shifting House, Lower Upnor Ordnance Depot Grade II 667 m
  7. Upnor Castle Grade I 740 m
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