In 2020, the seminary moved from the historic building on Sherbrooke St. W. where it had operated since 1857, and its academic programs are now offered in partnership with the Faculty of Theology and Religious Sciences of Laval University.

To celebrate the 150th anniversary of the Seminary, an organ in the French classical style, was built in the chapel, thanks to an anonymous donation: the instrument cost CA$450,000.

The organ has 39 stops spread over five divisions (four manuals and pedals), including mixtures which are essentially the same as those of the instrument by Clicquot in the Poitiers Cathedral, for a total of 63 ranks and just over 2800 pipes.

In the beginning, a small collection of 5000 volumes, originally from Saint Sulpice Seminary on Notre-Dame Street, was deserving teachers at the Grand Séminaire.

A vast majority of documents are written in French, but the collection also includes numerous works in Latin, as well as a few books in ancient Greek, in English and in indigenous languages.