The Rotunda at Maidstone Prison is a Grade II listed building in the Maidstone local planning authority area, England. First listed on 26 July 1973. Prison building.
The Rotunda at Maidstone Prison
- WRENN ID
- moated-granite-gorse
- Grade
- II
- Local Planning Authority
- Maidstone
- Constituency
- Maidstone and Malling MP: Helen Grant (Con)
- Country
- England
- Date first listed
- 26 July 1973
- Type
- Prison building
- Address
- The Rotunda at Maidstone Prison, Boxley Road
- OS grid reference
- TQ 761 562
- Coordinates
- 51.27843, 0.52389
- Source
- Historic England listing
Description
The Rotunda at Maidstone Prison is a building constructed between 1809 and 1811 by Daniel Alexander. It is the only remaining Turnkey's House of four originally built. The structure was initially surrounded by buildings on all four sides for security purposes. Currently, it consists of one floor with a basement, but it appears to have originally been three storeys and a basement. The building is made of Kentish ragstone and features a slate roof with wide moulded eaves cornice. There is a string course running from the first floor to the ground floor. The rotunda is circular in shape, but the two lower floors splay out on all four sides and were originally connected to other buildings. The second-floor windows are blank sashes, while the first floor has two round-headed windows on each elevation. The ground floor includes fixed windows set in segmental openings supported by cast iron columns. It is attached to the Theatre block on the ground floor and has a domed interior. All the listed buildings at Maidstone Prison form a group.
Local climate
The Rotunda at Maidstone Prison 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 76% of listed buildings.
It experiences an average of 28 freeze-thaw cycles a year, fewer than 69% of listed buildings. Of these, 13 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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- No EPC on record for this property
- No sale records on file
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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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