(1) Light and ventilation. No person shall occupy as owner-occupant or let to another for occupancy any dwelling, multiple dwelling, rooming house or rooming unit, or portion thereof for the purpose of living, sleeping, cooking and eating therein that does not comply with the provisions of this division.
(2) Natural light in habitable rooms.
(a) Every habitable room shall have at least one window of approved size facing directly to the outdoors or to a court. If the room is connected to a room or area used seasonally, such as a porch, then adequate daylight must be possible through this inter-connection.
(b) The minimum total window area measured between stops for every habitable room shall be 8% of the floor area of the room.
(c) Whenever walls or other portions of like obstructions are located less than three feet from the window and extend to a level above that of the ceiling of the room, the window shall not be deemed to face directly to the outdoors and shall not be included as contributing to the minimum total window area.
(3) Natural light in non-habitable rooms. Every room, other than a habitable room, used or occupied by persons shall comply with the provisions of this section. This section shall not apply to a room with infrequent occupancy.
(a) The room shall be provided with at least one window opening directly onto a street, court or be equipped with ventilating skylights which comply with the requirements of this section; or
(b) The room shall be provided with an approved means of mechanical ventilation.
(4) Light in non-habitable work space. Every laundry, furnace room and similar non-habitable work space shall have at least one functioning electric light fixture available at all times.
(5) Light in public halls and stairways. Every public hall and inside stairway shall be adequately lighted at all times with an illumination of at least one foot candle per square foot in the darkest portion of the normally traveled stairs and passageways.
(6) Electric outlets required. Every habitable room, kitchen, public hall, water closet compartment, bathroom, laundry room and furnace room shall have the minimum number of electrical outlets and electrical lighting fixtures as provided for in the Building Code.
(7) Adequate ventilation. Every habitable room shall have at least one window which can be easily opened or other device as will adequately ventilate the room. A total openable window area in every habitable room shall be equal to at least 50% of the minimum window area size required in this section except where mechanical ventilation is provided in accordance with the provisions of the Building Code.
(8) Bathrooms and water closets. Every bathroom and water closet compartment shall comply with the light and ventilation requirements for habitable rooms contained in divisions (3) and (7) above except that no window shall be required in bathrooms or water closet compartments equipped with an approved ventilation system.