Winnipeg Architecture Foundation




Formerly:Canadian Bank of Commerce, Canadian Imperial Bank of Commerce
Address:333 Portage Avenue
Use:Television Studios
Original Use:Bank Branch
Other Work:1985, 1990, 1991, Renovations
Architects:Green Blankstein Russell
Prairie Associates

More Information

Notable modern elements of 333 Portage Avenue include the use of Manitoba Tyndall limestone facing and lack of exterior ornamentation. The relatively conservative height of the building is also characteristic of many of Green Blankstein Russell buildings of this period. In 2015 the building underwent an extensive renovation to become studio space for cable television station APTN.

Design Characteristics

  • Plan area: 8,777 square feet (815.38 square metre)
  • Gross floor area: 19,469 square feet (1,808.67 square metre)
  • Fire-resistant steel frame, concrete floors, walls of stone and brick on hollow tile
  • Main facades have large glass openings in steel frames
  • 29 foot (8.84 metre) column-free interior ceiling and a rear mezzanine


  • "Services," Greater Winnipeg Industrial Topics, 18 9 (November 1958). 7.
  • Microfilm Roll #24, file on "Canadian Imperial Bank of Commerce 1938-1974."
  • Provincial Archives of Manitoba, GBR Architects Limited. 1932-1982. (Project #5706, Box 24, 1957, BP 25).

Locations of Supporting Information

  • City of Winnipeg Archives
  • University of Manitoba Libraries, Department of Archives and Special Collections, Winnipeg Tribune Subject Clipping Research Files