It is an example of postmodern architecture, with a distinctive triangular copper roof as well as four copper-capped rotunda entrances at the tower base corners, which were inspired from the Mary, Queen of the World Cathedral on the north side of the building, following the trend set by Place de la Cathédrale (KPMG Tower) of Montreal skyscrapers borrowing some of their design from that of the nearest church.

Also, the semispherical corner caps mirror the shape of the half-circular windows of neighbouring Marriott Château Champlain hotel, which were themselves inspired by the arches of the adjoining Windsor Station.

The 1000 de la Gauchetière was built by Pomerleau Inc., the largest construction company in Quebec and one of the top general contractors in Canada.

In 2002, SITQ, a division of the Caisse de dépôt et placement du Québec (CDPQ), bought the building for CA$184 million.

Also, when it is viewed as part of the skyline, 1000 de la Gauchetière appears from certain angles to be shorter because it is built on lower ground, allowing it to be taller while it still obeyed height restrictions relative to Mount Royal.