Designed by architect Leslie Rebanks, the Wittington Tower is a 20-storey octagonal tower located at 22 St. Clair Avenue East. It was completed in 1975 and its design received international acclaim and won several design awards. Part of the Weston Centre, the top two floors are occupied by the headquarters of George Weston Ltd., owner of the Loblaws chain. George Weston Ltd. occupies five full floors in the building. Wittington Properties occupies the majority of the fourth floor. Loblaw Co.