Rock Windmill is a Grade II listed building in the Horsham local planning authority area, England. First listed on 24 February 1977. Windmill. 1 related planning application.
Rock Windmill
- WRENN ID
- unlit-keep-coral
- Grade
- II
- Local Planning Authority
- Horsham
- Constituency
- Arundel and South Downs MP: Andrew Griffith (Con)
- Country
- England
- Date first listed
- 24 February 1977
- Type
- Windmill
- Address
- Rock Windmill, Rock Lane, Washington, RH20 3DA
- OS grid reference
- TQ 128 136
- Coordinates
- 50.91168, -0.39662
- Source
- Historic England listing
Description
Rock Windmill, dated 1827, is a smock-type windmill that has been converted into a house. The roundhouse is constructed of painted brick, with a section above made of tarred weather-boarding that is now covered with bitumastic. The roundhouse has been enlarged to serve as part of the dwelling. It features an octagonal pointed cap with a wooden platform surrounding it. The sweeps and fantail are missing, and there are modern windows installed. There is no machinery inside. John Ireland, a composer, formerly lived here.
Local climate
Rock Windmill receives an average of 810 mm of rain a year. This makes it drier than 51% of listed buildings in the UK. Its exposure to wind-driven rain is greater than that of 86% of listed buildings.
It experiences an average of 13 freeze-thaw cycles a year, fewer than 88% of listed buildings. Of these, 6 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
Sign in or create a free account to unlock:
- No EPC on record for this property
- No sale records on file
- Related listed building consents — 1 application
- 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
Matched applications, energy data and sale records are assembled automatically and may contain errors. Flag incorrect data.
Similar buildings
The closest matches to this building from all 493,000 UK listed buildings, by architecture, period and materials.
this building 1 similar nearby listed buildings