Article R1331-23 of the French Public Health Code
The configuration of the living areas of a premises is considered not to be cramped when the following cumulative conditions are met: 1° One of these living areas has a surface area of at least nine square metres or a habitable volume of at least 20 cubic metres; 2° The other rooms have a surface area of at least seven square metres; 3° An occupant can move around safely and…