Outer Curtain Wall and Gatehouse at Farnham Castle is a Grade I listed building in the Waverley local planning authority area, England. First listed on 26 April 1950. A Probably late C12 to early C13 Castle.

Outer Curtain Wall and Gatehouse at Farnham Castle

WRENN ID
rough-shingle-finch
Grade
I
Local Planning Authority
Waverley
Constituency
Farnham and Bordon MP: Gregory Stafford (Con)
Country
England
Date first listed
26 April 1950
Type
Castle
Address
Outer Curtain Wall and Gatehouse at Farnham Castle, Castle Hill
OS grid reference
SU 836 473
Coordinates
51.21913, -0.80342
Source
Historic England listing

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

Description

The outer curtain wall and gatehouse at Farnham Castle date from the late 12th century to early 13th century. The wall is made of chalk and is enclosed by a ditch and bank, with a large ditch still visible to the north and east. The curtain wall features square mural towers that project outward from the north face, which originally had arrow slits in the upper part. The gatehouse is located in the southwest part of the curtain wall and is likely from the 13th century, though it has been rendered and includes 19th-century additions. It consists of two rectangular towers with semi-octagonal projections on either side.

Local climate

Outer Curtain Wall and Gatehouse at Farnham Castle receives an average of 750 mm of rain a year. This makes it drier than 71% of listed buildings in the UK. Its exposure to wind-driven rain is lower than that of 57% of listed buildings.

It experiences an average of 35 freeze-thaw cycles a year, more than 60% 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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