Before the bombing of August 1944, which destroyed 80% of the city, the Casino de Saint Malo was located on the site of the Palais du Grand Large.

It was rebuilt in 1954 in its current form and transformed in 1984, under the impetus of the mayor of the time, into a Convention Centre.

The Palais du Grand Large Association was created in 1987 to manage it.

Since July 1, 2019, Le Grand Large has been attached to the SPL Destination Saint-Malo Baie du Mont Saint-Michel. The operational team remains unchanged.