1) This study was proven flawed, because of definition 'home'. It does not include condos, and nowadays that's significant. I remember long threads about it on other 'forums' 2) More correct metric would be m^2/person and m^2/adult and that metric is in constant fall. Can't recall exact numbers, it is now somewhat 25-30% less m^2/person than it was in 70-s.

Also, see UK and most of Europe, shrinking is a common trend for a very long time http://www.dailymail.co.uk/news/article-2398714/The-incredib...

"The average new British home is now just 925 square feet – barely HALF the size they were in the 1920s"