Not to be outdone by MLB’s announcement last week of a 400,000-square-foot lease at 1271 Sixth, the National Basketball Association (NBA) has signed a 175,000-square-foot lease extension through 2035 at 645 Fifth Ave. in New York City.

Olympic Tower is a 21-story, 419,000-square-foot, 4-Star office and residential tower built owned by Oxford Properties Group, the real es