<P> As reported by Frank Lloyd Wright's apprentices at Taliesin, Edgar Kaufmann Sr. was in Milwaukee on September 22, nine months after their initial meeting, and called Wright at home early Sunday morning to surprise him with the news that he would be visiting Wright that day . Kaufmann could not wait to see Wright's plans . Wright had told Kaufmann in earlier communication that he had been working on the plans, but had not actually drawn anything . After breakfast that morning, amid a group of very nervous apprentices, Wright calmly drew the plans in the two hours in which it took Kaufmann to drive to Taliesin . </P> <P> Wright designed the home above the waterfall, rather than below to afford a view of the cascades as Kaufmann had expected . It has been said that Kaufmann was initially very upset that Wright had designed the house to sit atop the falls . Kaufmann had wanted the house located on the southern bank of Bear Run, directly facing the falls . He told Wright that they were his favorite aspect of the property . </P> <P> The Kaufmanns planned to entertain large groups of people, so the house needed to be larger than the original plot allowed . Also, Mr. and Mrs. Kaufmann requested separate bedrooms, as well as a bedroom for their adult son, and an additional guest room, for a total of four bedrooms . </P> <P> A cantilevered structure was used to address these requests . The structural design for Fallingwater was undertaken by Wright in association with staff engineers Mendel Glickman and William Wesley Peters, who had been responsible for the columns featured in Wright's revolutionary design for the Johnson Wax Headquarters . </P>

Fallingwater was built on the site of a waterfall over a creek