Mixed Occupancy

• Major occupancy type is 90% of floor area of any floor in the building
• Interpret occupancy floor area as conditioned space
• Minor occupancy can comply with the provisions of the major occupancy
  • Example: In a three-story building where the first floor is retail and the other other two are residential, the retail space could comply with the residential code if the retail space were less than 10% (rather than the commercial code it would usually be required to meet)
• Where there is no "major" occupancy, each occupancy must comply with the applicable code