Information Barriers in Open Plan
Why confidential speech carries across desks, hot-desking zones, and internal adjacency, and what actually restores privacy without rebuilding the floor.
Open plan was sold for collaboration. It also removed the casual information barrier that partitions and closed doors used to provide. When desks sit closer than people realize, normal conversation volume carries client names, HR detail, and deal terms into neighboring workstations and circulation.
Hot-desking makes the problem worse because sensitive work happens at unpredictable locations. Teams learn to whisper or relocate, which is a sign the environment failed the confidentiality brief, not that staff are careless.
Internal adjacency is not only desk-to-desk. Speech leaks into reception, breakout areas, and restrooms when those spaces share a partition or ceiling plenum with executive or legal teams. The weak path is often flanking through a ceiling or a door undercut, not the visible workstation layout.
Sound masking and targeted treatments restore an information barrier by raising the background in controlled zones so speech loses intelligibility before it reaches the wrong listener. The right delivery level depends on how many zones you have, how often the layout changes, and who must operate the system day to day.
Measurement and audit come first when you cannot explain where speech is going. A speech privacy audit maps risk across the floor; design and install are booked once scope is agreed. For problem-led outcomes, see workplace speech privacy under Solutions.