The building they enter looks... normal, at first glance. A lobby, with a cognition standing at a front desk, smiling. She does not pay attention to the small child and his Persona carrying a robot. To the right of the front desk is a staircase. To the left, an elevator. Closer inspection reveals that the building has 15 floors.

Most floors appear as normal residential areas. Starting from the 10th floor, however, a special residential pass is needed to proceed. One would assume these are more high rise, expensive apartments.