Hey Scott,
Fun Question. We dealt with something similar during a hospital renovation. If I remember right I think they even stored archived X-ray film in several for a short period of time.
In our case we worked with the CBO and maintained 3m or 10′ separation from any structures. Keep in mind that consideration should be given to the cladding and openings of the nearest structure, its occupancy and is it protected by hoarding. Your CBO may be considering them buildings already as part of the permit process for the construction taking place.
Whether temporary or permanent consideration should also be given to Part 4 and Part 2 with regards to the storage and how the container is being used.
I hope this helps.