Several of the penthouse units at Grand Plaza, 545 N Dearborn, in the River North neighborhood have just become available for rent.
The building has an impressive 50,000 square foot amenities floor that you can tour in the above video.
The following video was shot in south-facing and northwest corner duplex units that went to auction almost exactly a year ago. The northwest corner, Unit 3401, had a reserve price of just under $700K at the time. It's a 2-bedroom, 3-bath with a 2-story living room, and is described as "newly refurbished." The unit is currently renting for $4,500 a month, and available for purchase at $898,000.
Koenig & Strey's Helen Jaeger Roth has the listings.