In New York City real estate, one of the rarest amenities is a lawn to stretch out on. That’s why a growing number of luxury buildings are adding elaborate park-like settings — think birch trees, grassy expanses and landscaped walkways — to the list of residents-only perks intended to attract buyers and renters. Call it Gramercy Park for the high-rise set. Below, a look at some of the outdoor spaces opening this spring.
