They break it out for you in one line "Decent housing = not less than 9m ²". (This is less than 100 square feet).
But wait, you can get around that:
"However, the decree allows the rental of a dwelling under 9m² if its volume is at least 20m3. The volume calculation is done by multiplying the area by the ceiling height. For example, if you have a ceiling height of 3m for an area of 8m ², the housing has a volume of 24 m3. It is decent and can be rented."This sounds ok, if you're a giraffe!