This post was featured in Chelsea Now's "Buzz" column and they supplied some more info on the topic.
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The exterior of the condo building at 18th St. and 8th Ave. is finished, complete with a bank on its first floor where there used to be a popular cafe/restaurant.
Now the spot is most popular with the throngs of thuggy teenagers who spill out of the high school on 18th every day. For weeks they've been flocking to the condo's comfy slate ledge, where they perch, preen, and agitate the afternoon away, smoking cigarettes and spilling sticky cola onto the slate.
Recently, a little fence of yellow caution tape went up. I can only assume that the tape is meant to keep these kids off. But these kids are a force to be reckoned with.