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I have a nice balcony, Mopsy. It was one of the things I most like about the flat.
I have a big gas barbecue on my balcony, and some garden furniture, and I put up a gazebo when people come over.
I tie it down with cable ties. I'd find it awkward if it blew off and killed a pedestrian. Unless they were a day tripper down from London, in which case it wouldn't be too big an issue, except it might get broken.
Sassy ...I think 10 Downing Street should follow your example. Yellow, instead of black, would make everyone feel cheerful as they went into Cabinet meetings.