In 1955, both the Théâtre Cartier and the Corona were converted into plumbing supply warehouses, marking the end of their use as performance venues. The building was acquired by Mr. Alberto Teodori in 1960 and went on to serve various functions: a teen dance hall, a nightclub, the Casino Cartier, and later the Dôme Cartier discotheque.
Renamed Théâtre Dôme, the building was rented in the 1970s by the Performing Arts Department of Dawson College, but was abandoned in the early 2000s, with little attention paid to its heritage or historical significance. It was officially abandoned in 2010 and put up for sale in 2014. The Théâtre Cartier remained without a buyer for years.
In 2024, the building was finally sold to the Fabienne Colas Foundation, which plans to transform it into a cultural hub. Construction planning has begun, and the opening is scheduled for 2027.