On the off chance that "pure penthouse qualities" doesn't say enough about this 17th floor lakefront co-op with three buxom terraces, were here to illustrate it for you. On an intensely vintage stretch of The Drive, just north of Belmont Harbor, enormous units are a given (with gut-busting assessments). Few are priced as high as $2.2M, but this puppy sits atop the gorgeous 3500 N LSD and delivers four beds, five baths, 5,200 square feet of living space, and easily another 1,000 square feet of rooftop terrace. Rooms are clean, wide, and modern and views are panoramic whether outside or in. The dreaded monthly assessment? $4,980.
·Listing: 3500 N Lake Shore Drive, Unit 17PH [Koenig & Strey]