A couple things came to mind when I saw this.
First, it’s a reminder that census data is painfully slow. Five years is a long time and a lot can and will change during that time period, including the kind of built form that people are living in.
Second, I agree with Gregg. Toronto is in the process of transforming into a majority apartment/condo dwelling city (if it hasn’t already), and it signals a pretty important juncture in our city’s history.
It also begs an important question: How should our planning response change and adjust as this percentage of urban dwellers continues to creep upward?