Hong Kong has a gross disposable income of 327K HKD [1], equivalent to $41,792 USD. That's higher than every country in that list except the US. Needless to say, Hong Kong houses—fewer than 500 sq ft on average—are nowhere near the size of American houses.
Canada is below France in that table, but Canada has large houses as well—2,200 sq ft, compared to below 1,500 sq ft for France.
[1]: https://www.statista.com/statistics/755874/hong-kong-disposa...