We have a client with a unique culinary use in an industrial area of the neighborhood known as NoMa. We had originally placed a couple of hives in an alley behind their use, an alley that was essentially only accessible to them although it is technically in public space.
Their first load of bees were literally sucked away by a giant fan that we did not know about that ventilated an adjacent garage.
So with a ladder, some rope, and some sweat we relocated the bees to the rooftop. The nice thing about this location, in spite of the access, is the large area for the hives, putting them regulation distance from the property line for conformance with our new law.
Here is the video we took that day with more details.