Zones rather than a single sweep
Dividing the floor into zones with their own quiet points is what makes a continuously used office manageable. Edit suites, studios, production areas, general office and shared facilities all follow different rhythms, and each has a period where it is genuinely available. A single attendance timed for the whole floor will find most of it occupied whenever it arrives.
The sequence should follow availability rather than geography. That may mean the cleaner moves from one end of the floor to the other and back, which looks inefficient on a plan and is considerably more efficient in practice than waiting outside a locked suite. Recording the sequence matters because it is not intuitive to anybody covering the run for the first time.
