As you might guess, all of the offerings have some kind of children's playroom on the premises, and are in comparatively high-end, settled neighborhoods with proximity to convenient trains and good schools (the Upper West Side, Brooklyn Heights, Midtown West, Yorkville, Tribeca, Williamsburg, etc.). But what else makes a kid-friendly building? A swimming pool doesn't hurt (at Murray Hill's 30 Waterside Plaza, there are even swimming classes), nor does extra storage space in the building, a doorman, entertainment options (think screening rooms), and concierge services that can help you book a babysitter.
Of course, with amenities like these, most of the buildings in question are in newish developments—including One Brooklyn Bridge Park—and you won't find much under $3,500 a month for rentals or under $1 million if you're in the market to buy.
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