(A) Privacy. Dwelling units, hotel units, housekeeping units, rooming units and dormitory units shall be arranged to provide privacy and be separate from other adjoining spaces.
(B) Minimum room widths.
(1) A habitable room, other than a kitchen, shall be a minimum of seven feet (2,134 mm) in any plan dimension. Kitchen shall have a minimum clear passageway of three feet (914 mm) between counterfronts and appliances or counterfronts and walls.
(2) Exception. This division (B) shall not apply to existing non-conforming buildings or structures.
(C) Minimum ceiling heights.
(1) Habitable spaces, hallways, corridors, laundry areas, bathrooms, toilet rooms and habitable basement area shall have a minimum clear ceiling height of seven feet (2,134 mm).
(2) Exceptions.
(a) In one- and two-family dwellings, beams or girders spaced a minimum of four feet (1,219 mm) on center and projecting a maximum of six inches (152 mm) below the required ceiling height.
(b) Basement rooms in one- and two-family dwellings constructed after January 1, 1980 occupied exclusively for laundry, study or recreation purposes, having a minimum ceiling height of six feet eight inches (2,033 mm) with a minimum clear height of six feet four inches (1,932 mm) under beams, girders, ducts and similar obstructions. One- and two-family dwellings constructed prior to January 1, 1980 shall have no minimum ceiling height for basement rooms.
(c) Rooms occupied exclusively for sleeping, study or similar purposes and having a sloped ceiling over all or part of the room, with a minimum clear ceiling height of seven feet (2,134 mm) over a minimum of one-third of the required minimum floor area. In calculating the floor area of such rooms, only those portions of the floor area with a minimum clear ceiling height of five feet (1,524 mm) shall be included.
(d) Compliance with this division (C) for existing non-conforming buildings or structures shall be at the discretion of the Building and Zoning Director.
(D) Bedroom and living room requirements. Every bedroom and living room shall comply with the requirements of division (D)(1) through (D)(6) below.
(1) Room area. Every living room shall contain at least 120 square feet (11.2 mm) and every bedroom shall contain a minimum of 70 square feet (6.5 m2) and every bedroom occupied by more than one person shall contain a minimum of 50 square feet (4.6 mm2) of floor area for each occupant thereof.
(2) Closet. Bedrooms shall contain at least one closet contain at least nine square feet or an approved wardrobe cabinet.
(3) Access from bedroom.
(a) Bedrooms shall not constitute the only means of access to other bedrooms or habitable spaces and shall not serve as the only means of egress from other habitable spaces.
(b) Exceptions.
1. Units that contain fewer than two bedrooms.
2. Non-conforming use.
(4) Water closet accessibility.
(a) Every bedroom shall have access to at least one water closet and one lavatory without passing through another bedroom. Every bedroom in a dwelling unit shall have access to at least one water closet and lavatory located in the same story as the bedroom or an adjacent story.
(b) Exception. Non-conforming use.
(5) Prohibited occupancy. Kitchens and nonhabitable spaces shall not be used for sleeping purposes.
(6) Other requirements. Bedrooms shall comply with the applicable provisions of this code including, but not limited to, the light, ventilation, room area, ceiling height and room width requirements of §§ 150.145 through 150.148; the plumbing facilities and water-heating facilities requirements of §§ 150.149 through 150.155; the heating facilities and electrical receptacle requirements of §§ 150.156 through 150.161; and the smoke detector and emergency escape requirements of §§ 150.162 through 150.163.
(E) Overcrowding. Dwelling units shall not be occupied by more occupants than permitted by the minimum area requirements: