[R.O. 1966 § 15:4-25]
Every dwelling unit shall be occupied by persons composing not more than one family and two other persons. Every such unit shall provide, except as hereinafter set forth, habitable room floor area of 150 square feet for one person, 250 square feet for two persons, 350 square feet for three persons, 450 square feet for four persons, and 75 square feet for each additional person. Babies less than one year of age shall not be included. A family shall include only those persons who are within the relationship defined in this Housing Code as "related persons."
[R.O. 1966 § 15:4-26]
Every room used for sleeping purposes shall provide at least 400 cubic feet for each person 12 years of age or over and 250 cubic feet for each person under 12 years of age. Babies under one year shall not be counted as additional occupants.
[R.O. 1966 § 15:4-27]
Every room used for sleeping purposes shall have a minimum floor area of 75 square feet for the first person, 50 square feet for each additional person 12 years of age and over, and 35 square feet for each additional person under 12 years but over one year of age. Babies one year and under shall not be counted as additional occupants.
[R.O. 1966 § 15:4-28]
No room shall be used as a sleeping or habitable room unless there is a clear height from finished floor to finished ceiling of not less than 7 1/2 feet except that in attics and top half-stories, the height shall be not less than 7 1/3 feet over not less than 1/3 of the area of the floor when used for sleeping, study or similar activity.
[R.O. 1966 § 15:4-29]
Floor area shall be calculated on the basis of habitable area. Closet area and hall area, where provided within the dwelling unit, may count for up to 10% of the required habitable floor area. No part of a room shall be included in calculations for purposes of determining habitable area which has a floor-to-ceiling height of less than 4 1/2 feet.
[R.O. 1966 § 15:4-31]
A basement may be used for sleeping, cooking or eating purposes providing:
a. 
All applicable provisions of the ordinances of the City and the State Hotels and Multiple Dwellings laws are met. For the enforcement of this Article all of the provisions shall be deemed incorporated herein and made part thereof.
b. 
There is a ready means of egress to the exterior of the building from the dwelling unit or rooming unit through two accessible doors, one of which may provide direct egress into a common areaway, hall or corridor which has an accessible door providing a direct means of egress to the exterior of the building.
c. 
There is a fireproof partition or wall completely separating any boiler or furnace unit from the dwelling unit or rooming unit.
[R.O. 1966 § 15:4-32]
Installation, use and operation of gas burning appliances is prohibited in any room used for sleeping purposes, except that gas appliances which employ a sealed combustion system, the inlet and outlet of which communicate with the outside air, and a single one-plate gas burner which is permanently connected by rigid pipe to the source of gas supply in accordance with the State Uniform Construction Code,[1] are permitted in any sleeping room.
[1]
Editor's Note: This reference was originally to Title XIX, Plumbing Code, which has been repealed by the State Uniform Construction Code.