Originally built in 1860s, Grain Tower has been modified a number of times to keep it in service across 2 world wars.

Originally a round granite tower, it was built as part of the Chatham Defences, there would have been a large chain going between the tower and sheerness to stop enemy ships entering the medway estuary.

Over the course of the 2 world wars it was extended and modified to take 'modern' gun emplacements, andwas extended with a 4 storey observation / light tower and a free standing barrack block.

Sub-Brit Page.