The Bay at Yonge and Bloor has a change station in their washrooms on the 3rd and 5th floors. Their nursing area is in the "play room" on the 4th floor but it is sometimes repurposed for other events or observances such as Ramadan.
One mom wrote: “One chair and a fold down change table. A rather miserable closet of a room, but it’s privacy if you need it.”
Note: Report mom-shaming or harassment while nursing in public or near lactation rooms (breastfeeding rooms), at Moms Pump Here mobile site https://www.momspumphere.com