Hines and the California Public Employees' Retirement System (CalPERS), its partner in National Office Partners LP, sold the four-story, 131,633-square-foot office building at 55 Railroad Avenue in Greenwich, CT, to Willrich Holdings, a joint venture of Willett Companies LLC of Rye, NY, and Warren & Partners of Dublin, Ireland, for $97,750,000 or approximately $742.60 per square foot.