How will the attributes of two sub-scales of a project conflict?

The project is too big to be divided by schedule or area, and I have never seen it indoors or outdoors.

Cleaning is to say, who owns the equipment maintenance and fire management?

How to identify the so-called public parts?

Who owns the fire control facilities in the room?

How to check whether the sewer is blocked?

Whose water is it when the water in the house overflows outside? Who cleans?

Who is in charge of throwing objects at high altitude? Who will buy public liability insurance?

Whose file management is the owner?

How to connect with the superior management department?

Who is in charge of decoration management?