Unowned space degrades in a predictable order
Shared corridors decline in a sequence that is easy to recognise. First the floor edges and corners hold dust because trolleys keep the centre polished. Then scuffing appears on walls at trolley height. Then equipment and stock begin to be stored in the corridor because nobody objects. By the time it looks bad, part of the space is no longer cleanable at all.
Interrupting that sequence is mostly about the third stage. A corridor with a written no-storage rule and a nominated owner stays cleanable. One without either becomes a de facto store, and the cleaning scope quietly reduces to whatever floor remains visible. Naming the owner is therefore worth more than adding frequency to a corridor already half full. A short written rule issued by management, referenced in the cleaning scope, is far more effective than a cleaner raising the same point with a tenant each week.
