A modular overhead privacy system for a mobile platform is provided. The modular overhead privacy system includes a plurality of independent privacy modules located longitudinally spaced apart, above a passenger cabin, in an overhead crown area of the mobile platform. The modular overhead privacy system additionally includes a plurality of private access stairways providing access to the privacy modules from the passenger cabin. Each private module is accessible by an independent one of the private access stairways. Each privacy module includes at least one berth that provides a passenger or crew member a private reposing space separate from the passenger cabin. The privacy modules are longitudinally spaced apart in accordance with a seat pitch of a plurality of rows of seats in the passenger cabin. Therefore, each access stairway descends from the respective privacy module such that a bottom portion of the access stairway encroaches a single seat location within a specific row of seats.