A TEU (Shipping container) has the most common dimensions of a 20-foot (6.1 m) container are 20 feet (6.1 m) long, 8 feet (2.44 m) wide, and 8 feet 6 inches (2.59 m) high, for a volume of 1,360 cubic feet (39 m3), 
For a floor area of  14.88square metres (160 square feet).   
And are being used  to house, on public display, homeless at Main Street and Terminal.
A new eco apartment block is gambling on people enjoying "environmental friendly design" and must enjoy being squeezed into 400 sq. feet (37 sq. metres).  So what do these Tiny House persons do all day if they don't go to work.  How much different is it from a better prison cell, (which T-house can be sold on the property market for tens of thousands more than they paid for it.   
Only need 2 years supposed residence until they can flip it, Tax-Free.
Note that 7 square metres us the minimum cell size standard for single occupancy for new and replacement accommodation with a toilet and wash basin for prisons in Canada.