Regularly occupied spaces are areas where people normally spend time either seated or standing as they work, study, or perform other focused activities in the building. Some common space types that are not considered regularly occupied space are corridors, bathrooms, storage, mechanical rooms, and break rooms. Conference/meeting rooms, classrooms, and hotel guest rooms are considered regularly occupied.

The total regularly occupied space for this credit will be less than the building’s gross floor area reported in PIf3, but large differences should be clearly explained with a narrative. Also, make sure that the total area for multi-occupant spaces is consistent with IEQc2.2 if you’re pursuing that credit as well.