Severndroog Castle

Severndroog Castle is a folly designed by architect Richard Jupp, with the first stone laid on 2 April 1784.

While commonly referred to as a castle due to its turrets, it was built as a folly, as can be discerned by its small size and because it has never functioned as a castle. It is situated in Castle Wood, on Shooter's Hill in south-east London in the Royal Borough of Greenwich.

It was built to commemorate Commodore Sir William James who, in April 1755, attacked and destroyed the island fortress of Suvarnadurg of the Maratha Empire on the western coast of India, between Mumbai and Goa. James died in 1783 and the folly was built as a memorial to him by his widow, Lady James of Eltham.