No person shall occupy as owner-occupant or let or sublet to another for occupancy any dwelling or dwelling unit designed or intended to be used for the purpose of living, sleeping, cooking or eating therein, nor shall any vacant dwelling building be permitted to exist, which does not comply with the requirements in this division.
(2004 Code, sec. 153.100)
Every dwelling unit shall contain at least 150 square feet of floor space for the first occupant thereof and at least 100 additional square feet of floor space per additional occupant.
(2004 Code, sec. 153.101)
In every dwelling unit of two or more rooms, every room occupied for sleeping purposes by one occupant shall contain at least 70 square feet of floor space and every room occupied for sleeping purposes for more than one occupant shall contain at least 50 square feet of floor space for each occupant thereof.
(2004 Code, sec. 153.102)
At least one-half of the floor area of every habitable room, foyer, hall or corridor 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 seven 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.
(2004 Code, sec. 153.103)
No basement or cellar space shall be used as a habitable room or dwelling unit unless:
(1) 
The floor and walls are impervious to leakage of underground and surface runoff water and are insulated against dampness;
(2) 
The total of window area in each room is equal to at least the minimum window area size as required in division 3 of this article;
(3) 
The required minimum window area is located entirely above the grade of the ground adjoining such window area; and
(4) 
The total of openable window area in each room is equal to at least the minimum as required under division 3 of this article, except where there is supplied some other device affording adequate ventilation.
(2004 Code, sec. 153.104)