Sundial Gnomon on the South-Western Lawn at Headley Court is a Grade II listed building in the Mole Valley local planning authority area, England. First listed on 18 July 2001. Gnomon. 4 related planning applications.

Sundial Gnomon on the South-Western Lawn at Headley Court

WRENN ID
scattered-screen-moss
Grade
II
Local Planning Authority
Mole Valley
Constituency
Dorking and Horley MP: Chris Coghlan (LD)
Country
England
Date first listed
18 July 2001
Type
Gnomon
Address
Sundial Gnomon on the South-Western Lawn at Headley Court, Headley Road
OS grid reference
TQ 197 554
Coordinates
51.28571, -0.28482
Source
Historic England listing

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

Description

The sundial gnomon located on the south-western lawn at Headley Court dates from the late 19th century or early 20th century. It is a large cast iron sundial gnomon designed for use in a lawn or border setting. At the time of inspection, the gnomon was significantly overgrown by hedging, with the sundial numerals incorporated into the hedging.

Local climate

Sundial Gnomon on the South-Western Lawn at Headley Court sits in a drier-than-average part of the UK, with an average of 740 mm of rain a year. This makes it drier than 76% of listed buildings in the UK. Its exposure to wind-driven rain is lower than that of 68% of listed buildings.

It experiences an average of 38 freeze-thaw cycles a year, more than 71% of listed buildings. Of these, 17 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 — 4 applications
  • 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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