It houses the Chantry Heritage Centre, displaying a range of exhibits relating to Gravesend, Northfleet, and the nearby villages.

It is within the Fort Gardens and is designated by English Heritage as a Grade II* listed building.

[4] Many wealthy people built chantry chapels and gave them land to generate an income, in order to maintain a priest to pray for the owner and his family.

During the World War II, the basement of the chantry chapel was converted into a gas-decontamination chamber.

[3] Following the war, the chapel was converted into the local museum named the Chantry Heritage Centre.