In Ottawa I lived in a quadplex, one of several, all surrounding a common park. It was a nice idea but there were just enough inconsiderate people and disinterested parents to make a the park a filthy mess and, later in the day, not so safe to go to since a bunch of young people would hang out on the kids play structures and scare the little kids away. The parents of the teens did not care. Idiots wreck everything.