100sqf per inhabitant isn't particularly uncommon in Hong Kong, even in normal flats. It's quite common to fit an entire family in 300-400 sqf and that flat wil

100sqf per inhabitant isn't particularly uncommon in Hong Kong, even in normal flats. It's quite common to fit an entire family in 300-400 sqf and that flat will set you back nearly US$1m on HK Island.