The building is connected to the 424-room Westin River North Hotel by a glass-enclosed atrium. Landscaped park at the base of 321 North Clark and hotel terraces down to a promenade walk along the Chicago River. Outside memberships to fitness center at Westin River North are available. Riverfront restaurant is featured. 24-houred manned security. On-site ownership. Excellent views. Class A interior facilities. Elevator identity availableIn 2011, this building was awarded LEED certification at the Gold level by the U.S. Green Building Council.This building was awarded an Energy Star label in 2007(86), 2008(84), 2009(83), 2010(86), 2011(83), 2012(83), 2013(81), 2014(76), 2015(82), 2016(84), 2017(83) for its operating efficiency. NEC