1c Sec. 22-300 Dwelling Space
No person shall occupy as owner-occupant, or let or sublet to another person 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 following requirements:

  1. Required space in dwelling unit. 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 area per additional occupant. The floor area shall be calculated on the basis of the total area of all habitable rooms.
  2. Required space in sleeping rooms. 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 by more than one occupant shall contain at least 50 square feet of floor space for each occupant thereof.
  3. Minimum ceiling height. Every habitable room, foyer, bathroom, hall or corridor shall have a ceiling height of at least seven feet. If any room has a sloping ceiling, the prescribed ceiling height for the room is required in only one-half the area thereof, but 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.

Pinellas County, FL Sec 22-300