Balconies on major streets
I would never be able to find the article now, but I remember a piece in the Los Angeles Times, maybe 9 or 10 years ago, about apartment buildings on major streets, and there being concerns about balconies, because people might store all kinds of junk, etc., there.
While I do agree that can be a problem, the balconies at the Park Place Apartments building at the intersection of Georgia and New Hampshire Avenues don't seem to be too obtrusive.
I don't know how helpful it is, but it is another level of "eyes on the street" as well.
(Apologies that the photos aren't that good.)