Waterline Square comprises of 3 buildings on the Hudson River waterfront of Manhattan’s Upper West side between West 59^th Street and West 61^St Street. The buildings are connected by a Matthew-Nielson designed park complete with a water feature and will include over 100,000 square feet of leisure, lifestyle, and sport amenities.

Hill West collaborated with Richard Meier & Partners on One Waterline Square, Kohn Petersen Fox Associates on Two Waterline Square, and Raphael Vinoly Architects on Three Waterline Square.

The original ULURP for Riverside Center, approved by the City Council in 2010 included 5 buildings, and was designed through a collaboration of Hill West with French Architect, Christian de Portzamparc. Waterline Square picks up where the ULURP left off and is connected to the other 2 buildings that were originally part of this ULURP by a footpath.