In 1983 the Boston Redevelopment Authority announced a National Design Competition for the redesign of historic Copley Square in Boston's Back Bay neighborhood. Yefim Massarsky took part in this competition, presenting his plans and renderings delineating the character and functional uses of the square including pathways, seating, food service, lighting and fountain design. Many of Yefim's ideas were implemented during the construction of the renovated Copley Square.