No person shall occupy or let to another for occupancy any dwelling or dwelling unit, for the purpose of living therein, which does not comply with the following requirements.
(A) Every dwelling unit shall contain at least 100 square feet of floor space for the first occupant thereof and at least 50 additional square feet of floor space for every additional occupant thereof, the floor space to be calculated on the basis of total habitable room area.
(B) In every dwelling unit of two or more rooms, every room occupied for sleeping purposes by one occupant shall contain at least 60 square feet of floor space, and every room occupied for sleeping purposes by more than one occupant shall contain at least 40 square feet of floor space for each occupant thereof over 12 years of age, and at least 30 square feet for each occupant thereof under 12 years of age.
(C) At least one-half of the floor area of every habitable room shall have a ceiling height of at least seven feet; and the floor area of that part of any room where the ceiling height is less than five feet shall not be considered as part of the floor area in computing the total floor area of the room for the purpose of determining the maximum permissible occupancy thereof.
('75 Code, § 80.7(1), (2), (3)) Penalty, see § 10.99