Gamma Real Estate has hired Danish architect Thomas Juul-Hansen to design their new Midtown East skyscraper at the 3 Sutton Place site. The project they have chosen to move forward with is a 700-foot, 67-story condo tower. Gamma Real Estate closed on the $98 million deal last week, which included $86 million for the site and $12 million for air rights. They have since demolished the three tenement buildings that were on the 58th street property.