Designed by Charles B. Dolphin (1888-1969) and opened on February 7, 1958, the seven-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 June 1954, shortly after the opening of the Yonge Subway.

[1] The TTC's Customer Service Centre is located on the ground floor of the building.

[3] Earlier plans to relocate to Yonge and York Mills had been rejected for costs.

The move would consolidate office space and free up municipally-owned property for redevelopment.