The office zone behaves like an office
Mezzanine and ground-floor administration areas need what any office needs: desks and surfaces, meeting rooms, kitchen, internal glass, floors and waste, on a commercial frequency. The mistake is to fold them into a warehouse schedule and treat them as a minor addition, which typically produces a space that is technically cleaned and visibly neglected. Write them with their own task list at a frequency matching how many people work there.
Pay particular attention to the stairs and the interface between the two environments. Dust and soil travel up from the floor, and the stair treads, handrails and mezzanine edge collect it. These are small areas with a high visual impact and they sit in nobody's zone unless assigned. A single line placing them in the office schedule is usually enough to resolve it permanently. Dust migration up the stairs is a predictable problem and a cheap one to solve early.
