 The new building was instead designed by the architectural firm Harbeson, Hough, Livingston & Larson on a more modest scale, and shared with the nascent National Museum of American Jewish History.The fifth building was dedicated and opened on July 4, 1976 

Rabbi Joshua Toledano (1944–2013) came to Mikveh Israel as minister in the early 1980s, and served until 1988 when he left to start the Mekor Baruch Center in Lower Merion.Rabbi Allan Lazaroff began to serve as minister in September 1989.