1150 Eglinton Avenue East, was the IBM Canada Headquarters building designed by John B. Parkin Associates in 1966-67 and extended in 1970-71. This is a separate firm from the later Parkin Partnership Architects and Planners. In 1970 it was nominated for a Massey Medal for Architecture.

In September 2016 a City of Toronto Heritage Planning Staff report recommended that the property be designated under Part IV of the Ontario Heritage Act, with the adjacent IBM property at 844 Don Mills Road.  The Toronto Preservation Board considered the report and recommended to the North York Community Council (NYCC) that City Council state its intention to recommend the two properties for designation.  On October 13, 2016, the NYCC referred the matter back to the Chief Planner to allow any recommendations with respect to cultural heritage to be made in tandem with recommendations on the comprehensive development framework and the final report of the planning application for the lands. As of July 2020, City Council included the property on the City's Heritage Register and enacted by-law 1154-2020 on December 18, 2020 to designated the property under Part IV of the Ontario Heritage Act. 

• Architect - Parkin Partnership Architects Planners  <-- More buildings by this architect.