Bridgeport, Conn., Mun. Code §§ 15.12, 15.28 § 15.12.160

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.
Total Floor Area Required per Occupant of Sleeping Rooms. In every dwelling unit of two or more rooms, every room occupied for sleeping purposes by one occupant shall contain at least seventy (70) square feet of floor space, and every room occupied for sleeping purposes by more than one occupant shall contain at least fifty (50) square feet of floor space for each occupant thereof.
B. Arrangement of Sleeping Rooms. No dwelling or dwelling unit containing two or more sleeping rooms shall have such arrangements that access to a bathroom or water closet compartment intended for use by occupants of more than one sleeping room, can be had only by going through another sleeping room; nor shall room arrangements be such that access to a sleeping room can be had only by going through another sleeping room or bathroom or water closet compartment.
C. Ceiling Height. At least three-quarters (seventy-five (75) percent) of the floor area of every habitable room in a multiple dwelling shall have a ceiling height of at least seven feet, eight inches, except for attic rooms which shall be at least seven feet, four inches high in one-half (fifty (50) percent) of its area; 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 floor area of the room for the purposes of determining the maximum permissible occupancy thereof.
D. Cellar Space. No cellar space shall be used as a habitable room or dwelling unit.
E. Basement Space. No basement 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 run-off water and are insulated against dampness;
2. The total of window area in each room is equal to at least the minimum window area sizes as required in Section 15.12.100 (A);
3. Such required minimum window area is located entirely above the grade of the ground adjoining such window area;
4. The total of openable window area in each room is equal to at least the minimum as required under Section 15.12.100 , except where there is supplied some other device affording adequate ventilation and approved by the housing code enforcement officer;
5. Such room or rooms shall be at least eight feet, six inches high in part from the floor to the ceiling and such ceiling shall be at least four feet, six inches above the outside ground level.
F. Temporary Housing. No person shall occupy any structure defined as temporary housing for the purpose of living therein commonly classified as a shed, shack, houseboat, trailer, body of any vehicle or any other structure of similar category within the city.
G. Minimum Gross Floor Area. Every dwelling unit shall contain a minimum gross floor area of not less than one hundred fifty (150) square feet for the first occupant and one hundred (100) square feet for each additional occupant. The floor area shall be calculated on the basis of the total area of all habitable rooms.