Warning: Multiple rooms are in the same enclosed region. The correct area and perimeter will be assigned to one room, and the others will display “Redundant Room.” You should separate the regions, delete the extra rooms, or move them into different regions.
Issue: This message displays when multiple rooms reside in the same region of the building model. In schedules, Revit displays Redundant Room.
One of the rooms displays the correct area and perimeter. The others display Redundant Room so that the space is not counted more than once in schedule totals. When a view displays the rooms using the Interior Fill visibility setting, the rooms that report Redundant Room display in a darker color because the room areas overlap.
Solution: Do either of the following: