The Old Lock Up is a Grade II listed building in the Mid Sussex local planning authority area, England. First listed on 5 February 1979. A C19 Gaol, residential.

The Old Lock Up

WRENN ID
endless-wicket-clover
Grade
II
Local Planning Authority
Mid Sussex
Constituency
East Grinstead and Uckfield MP: Mims Davies (Con)
Country
England
Date first listed
5 February 1979
Type
Gaol, residential
Address
The Old Lock Up, 90, High Street, East Grinstead
OS grid reference
TQ 397 379
Coordinates
51.12391, -0.00417
Source
Historic England listing

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

Description

The Old Lock Up, built around 1830, was designed as a combined town gaol and residence for the Town Constable. The building features two parallel ranges and is constructed of red brick with some vitrified headers. It has two gables with stone coping and a tiled roof. On the first floor, there are two casement windows with cambered head linings. The ground floor includes one sash window with glazing bars and a cambered head lining, along with a diamond-shaped opening on the right side that has an iron grille, which was the entrance to the cell. The doorcase is simple, with a studded door and a modern weather hood supported by brackets. The building holds historical interest.

Local climate

The Old Lock Up receives an average of 770 mm of rain a year. This makes it drier than 64% of listed buildings in the UK. Its exposure to wind-driven rain is greater than that of 56% of listed buildings.

It experiences an average of 33 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
  • Weather exposure and heating demand — rain and frost month by month and year by year, wind direction, solar and humidity
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