France had occupied the Austrian Netherlands (a territory roughly corresponding to the borders of modern Belgium) during 1792 and 1793 in the Flanders Campaign of the French Revolutionary Wars. During the War of the Fifth Coalition, Napoleon Bonaparte expected a British assault from the sea on the port of Ostend, and the fort was constructed in the sand dunes close to the mouth of the harbour in 1811. The British attack never materialised and the fort was used as for troop accommodation and as an arsenal until the end of the French occupation in 1814 when it was abandoned.

The fort was also used as German artillery headquarters during World War II. After the war, it served as a museum and then a children’s playground before falling into decay. In 1995, the fort came into the care of Erfgoed Vlaanderen vzw (the Flemish Heritage Association) and following a five year restoration programme, was opened to the public in April 2000.