Leybourne Grange is a Grade II listed building in the Tonbridge and Malling local planning authority area, England. First listed on 25 February 1987. Country house. 42 related planning applications.

Leybourne Grange

WRENN ID
second-jade-sage
Grade
II
Local Planning Authority
Tonbridge and Malling
Constituency
Maidstone and Malling MP: Helen Grant (Con)
Country
England
Date first listed
25 February 1987
Type
Country house
Address
Leybourne Grange, Birling Road
OS grid reference
TQ 678 593
Coordinates
51.30853, 0.40747
Source
Historic England listing

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

Description

Leybourne Grange is a country house, now serving as an administration building for Leybourne Mental Hospital. It was built around 1850 by S W Dawkes. The building features stuccoed facades with raised quoins on the central and end projections, which are two storeys high, and panelled pilasters at the attic storey. There is a string course between the ground and first floors, a cornice between the first and attic floors, and a parapet with cornice moulding above the attic. The slate hipped roofs are concealed by the parapet, which has various stacks, including two arched stacks at the centre of the parapet on the end projections.

The central projection is topped with a pediment that is broken by an open pediment framing a coat-of-arms. The building has two storeys and an attic, with the attic almost functioning as a complete third storey. The facade is regularly arranged with eleven bays, although the central projection is divided into two bays at the attic storey, featuring a single triple-arched window below. There is a pair of windows flanking the central entrance. Most windows are glazing bar sashes, except for the ground floor sashes and the central first floor window, which lacks glazing bars, as do the two windows beside the main door. The ground and first floor windows have segment-headed eared surrounds with cill brackets. The central ground floor entrance is a ponte-conchere with a balustrade over six columns, paired at each end, with single columns separating the wider central opening from the narrower flanking openings. Behind this, there are doubled half-glazed doors with an overlight.

Local climate

Leybourne Grange receives an average of 740 mm of rain a year. This makes it drier than 75% of listed buildings in the UK. Its exposure to wind-driven rain is lower than that of 75% of listed buildings.

It experiences an average of 31 freeze-thaw cycles a year, fewer than 63% of listed buildings. Of these, 14 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 — 42 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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