• Kenneth Cole has sliced $2 million off the price of his penthouse at 101 West 79th Street. Cole originally listed the four-bedroom apartment for $18.95 million. He just reduced it to $16.95 million, but it's unlikely Cole and wife Maria Cuomo will have much stuff to move out if they find a buyer. Although the fashion mogul has owned the apartment since '85, the family spends most of its time at homes on Sutton Place and in Westchester. [Cityfile, Carol E. Levy]
• Billy Joel has taken his Centre Island mansion off the market after failing to find a buyer for the $32.5 million property. Joel bought the waterfront estate, which is known as Middlesea, for $22 million in 2002. It's also where he tied the knot with Katie Lee back in 2004. [Newsday]
• Katharine Muir has listed her five-story, eight-bedroom townhouse at 42 West 71st Street for $7.3 million. [Cityfile, TE]