Maunsell designed two kinds of sea fort, one for the Army and the other for the Navy.
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The naval forts were of a different design.
The twin reinforced concrete legs housed the living quarters and were quite spacious.
Each fort accommodated approximately 120 men.
The Maunsell Forts were decommissioned in the late 1950s and later used for other activities.
The forts were left unmanned for several years.
One of the forts later became a micronation called thePrincipality of Sealand.
Today these magnificent remnants of the World War are undergoing renovation, thanks to a consortium called Project Redsands.