County Hall is a Grade II listed building in the Cambridge local planning authority area, England. First listed on 2 November 1972. Civic building.

County Hall

WRENN ID
waning-screen-gold
Grade
II
Local Planning Authority
Cambridge
Constituency
Cambridge MP: Daniel Zeichner (Lab)
Country
England
Date first listed
2 November 1972
Type
Civic building
Address
County Hall, Hobson Street
OS grid reference
TL 450 586
Coordinates
52.20692, 0.12172
Source
Historic England listing

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

Description

County Hall, dated 1913 and designed by H H Dunn, is an ashlar-faced building featuring seven bays, with the first and last bays set forward and rusticated. It has three storeys and a basement. The ground floor is rusticated and includes arched windows in each bay. Ionic half-columns are present through the first and second storeys, supporting sash windows with glazing bars and architrave surrounds. The building is topped with a cornice and a balustraded parapet, while the roof is not visible.

Local climate

County Hall sits in one of the driest parts of the UK, with an average of 690 mm of rain a year. This makes it drier than 96% of listed buildings in the UK. Its exposure to wind-driven rain is lower than that of 82% of listed buildings.

It experiences an average of 32 freeze-thaw cycles a year, fewer than 57% 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.

More on this building

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  • Detailed attributes — period, style, materials, features
  • Flood risk assessment
  • Radon risk assessment
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