Located on Southend airport, to the south of the main runway.
The Bunker is in poor condition as it is flooded to a depth of 4 feet, the cupola is missing. This is a MS2279 type Battle HQ so has a different layout to the standard 11008⁄41. The observation steps are rusted but still in place, the emergency exit has been capped but the ladder is still in place. There has been an extra floor added at some time.There are wooden cable supports but these may not be original.