Main Gatehouse and Bridge at Admiralty Compass Observatory, at Ditton Park is a Grade II listed building in the Windsor and Maidenhead local planning authority area, England. First listed on 26 April 1984. Gatehouse, bridge.
Main Gatehouse and Bridge at Admiralty Compass Observatory, at Ditton Park
- WRENN ID
- sombre-keystone-moss
- Grade
- II
- Local Planning Authority
- Windsor and Maidenhead
- Constituency
- Windsor MP: Jack Rankin (Con)
- Country
- England
- Date first listed
- 26 April 1984
- Type
- Gatehouse, bridge
- Address
- Main Gatehouse and Bridge at Admiralty Compass Observatory, at Ditton Park, Ditton Park Road, Datchet
- OS grid reference
- TQ 001 779
- Coordinates
- 51.49172, -0.55921
- Source
- Historic England listing
Description
The main gatehouse and bridge at the Admiralty Compass Observatory in Ditton Park is a 18th-century structure. The gatehouse is rendered brick and features towers with turrets, crenellations, and lancet windows flanking an arched gateway. An 18th-century brick bridge provides access over the moat and is complemented by a simple iron balustrade.
Local climate
Main Gatehouse and Bridge at Admiralty Compass Observatory, at Ditton Park sits in a drier-than-average part of the UK, with an average of 710 mm of rain a year. This makes it drier than 87% of listed buildings in the UK. Its exposure to wind-driven rain is lower than that of 82% of listed buildings.
It experiences an average of 32 freeze-thaw cycles a year, fewer than 59% 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.
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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