The main concourse occupies almost the entire block bounded by De la Gauchetière Street, Robert-Bourassa Boulevard, René Lévesque Boulevard and Mansfield Street in Downtown Montreal. Its street address and principal vehicular access are on de La Gauchetière; pedestrian access is assured by numerous links through neighboring buildings. The station is adorned with art deco bas-relief friezes on its interior and exterior. The station building and associated properties are owned by Cominar REIT as of January 2012. Homburg Invest Inc. (renamed Canmarc in September 2011) was the previous owner, since November 30, 2007. Prior to that, from the station's inception in 1943, it had been owned by Canadian National Railway (CN).