The parish of Foulness, which falls within the district of Rochford, forms part of MOD Shoeburyness. There are around 200 private residents living on Foulness Island in the two main villages of Churchend and Courtsend. There are also seven working farms that are run independently by tenant farmers.
Anyone wishing to gain access to the residential areas of the site (other than the Public Rights of Way) must either have official business (e.g. postal deliveries) or must be sponsored by a Foulness resident.
Unannounced recreational visitors will not be admitted via the security barrier at Landwick Gate unless they are visiting the Heritage Centre when it is open to the public.