Robertsen paid $1.23 million for Unit #61 in Feb. 2006.
Keren Kohen is a freelance set decorator, production designer and graphic designer. She worked previously with National Banana as production designer. She has also worked as set decorator and graphic designer at Timer.
She received a B.F.A. in graphic design from New York's School of Visual Arts and completed her M.F.A. in production design at the American Film Institute.
According to BlockShopper.com, there have been 78 condo sales in Flatiron during the past 12 months, with a median price of $1.006 million.
Address: 260 Park Avenue South, Unit: 6i
Buyer(s): Kohen, Keren, Kohen, Sharone, Kohen, Tal, Kohen and Daniel
Seller(s): Robertsen and Lauren
Sale date: Sep. 17, 2009