Haven’t you heard? Only commoners swim in the same pool as all the other plebs that live in their condo building. The buyer who scoops up this penthouse at 400 W Ontario St in River North won’t have to worry about the little people getting in the way of his or her morning laps — the four-bedroom abode has its own private 14-foot pool. Add in the room’s floor-to-ceiling windows and dazzling full-height tile job and you’ve got one very green YoChicagoan. The 2,800-square-foot wraparound terrace doesn’t sound too bad either. Anyone out there with $4.25 million to spare should feel free to contact Koenig & Strey listing agent Emily Sachs Wong and let her know you’d like to pick up this penthouse puppy for your favorite Yo writer (just so there’s no confusion, that would be me). In return, I’ve got a prim YoChicago tee shirt with your name all over it!