Ruins of Betchworth Castle is a Grade II listed building in the Mole Valley local planning authority area, England. First listed on 28 November 1951. Ruins.
Ruins of Betchworth Castle
- WRENN ID
- gilded-tallow-mist
- Grade
- II
- Local Planning Authority
- Mole Valley
- Constituency
- Dorking and Horley MP: Chris Coghlan (LD)
- Country
- England
- Date first listed
- 28 November 1951
- Type
- Ruins
- Address
- Ruins of Betchworth Castle, Brockham
- OS grid reference
- TQ 190 500
- Coordinates
- 51.23736, -0.29634
- Source
- Historic England listing
Description
The ruins of Betchworth Castle are the remains of a mansion built by Sir Thomas Browne in 1449. Alterations were made to the structure in 1705 and again in 1799 by the architect John Soane. At around the same time, Soane also designed stables and a dairy, which are associated with Castle Gardens in Betchworth Park. The castle was demolished in 1819. The ruins consist of stone rubble, ashlar, and red brick, with the remains of a garden terrace wall still visible below.
Local climate
Ruins of Betchworth Castle receives an average of 740 mm of rain a year. This makes it drier than 74% of listed buildings in the UK. Its exposure to wind-driven rain is lower than that of 58% of listed buildings.
It experiences an average of 36 freeze-thaw cycles a year, more than 63% of listed buildings. Of these, 16 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
- No related consent applications matched
- 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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