William McBrien Building (formally known as the W. C. McBrien Building) is the administrative headquarters of the Toronto Transit Commission. Designed by Charles B. Dolphin (1888-1969) and opened in 1958, the 7-storey building is located at 1900 Yonge Street above the Davisville subway station. The building is named for former TTC Chairman William C. McBrien who died in 1954, shortly after the opening of the Yonge Subway.