This striking triangular tower stands in Castlewood high on the slopes of Shooters Hill. It was erected in 1784, following the death of her husband, by Lady James in commemoration of his capture of the pirate fortress of Severndroog in India. From its turrets one can enjoy some of the finest views of London. There was a delightful tearoom there from 1921.

It is only open to the public on rare occassions, such as the London Open House weekend, but The Severndroog Campaign Group is battling to raise enough money to renovate it.