The Old Fort is one of 13 mobilisation centres (known collectively as the London Defence Positions) built in the 1890s to protect London from invasion from continental Europe. The six acre site of the fort was originally purchased by the Ministry of Defence in 1891, and construction began in 1896. Box Hill fort was laid out in the form of an infantry redoubt, typical of the period, but also included magazines for the storage of artillery ammunition.
(In common with the majority of the twelve other mobilisation centres,
the Box Hill fort was designed for the use of the infantry only and the
stored ammunition was intended for the use of mobile field artillery which would be deployed nearby as required.) A reform of defence policy by the Secretary of War Viscount Haldane in 1905 resulted in all 13 centres being declared redundant, and Box Hill Fort was sold back to the estate trustees in 1908 |