(This article is about the castle. For the secondary school, see Caludon Castle School.) Caludon Castle is a Scheduled Ancient Monument and Grade I listed building in Coventry, in the West Midlands of England. A second moated site 190 metres (620 ft) to the south is a Scheduled Ancient Monument in its own right. The castle is now a ruin, and all that remains is a large fragment of sandstone wall. What remains of the estate is now an urban park, owned and run by Coventry City Council, but much of it was sold and developed into housing estates in the early 20th century.