Looks like there's a building here already.

Banner on a building in Kew Gardens, Queens
That's funny. If I didn't know any better, I'd say that there's already a building there! In fact, the building came before the banner did!
Also, it looks like the banner originally said, "Coming soom." I guess the sign makers didn't want to spend the money to make a brand new banner, to hang from the building that's been there since before this banner was made.