North Weald Redoubt - Essex

The North Weald Redoubt was the first of the London Mobilisation centre built in the 1980s to protect London from invasion. As part of the London defense Scheme, the main function of this building was to store guns, ammunition, various tools and other equipment that was important. The building is shaped as a 'D'.
In WW1 the Redoubt was used as a military base and aresenal. The sight was then bought by the Marconi Telegraph company in 1919, where a radio staion was built and the Redbout used for storage. During WW2 the site was taken back by the military and had two machine gun turrets added. The site was decommissioed in the early 1990s.