Maurice Fatio was born in Geneva, Switzerland in 1897. He studied at the Zurich Polytechnic School under Karl Moser, a proponent of Modernist architecture, and obtained his degree in architecture in 1920. At the age of twenty-three, he arrived in the United States and worked for Harrie T. Lindeberg designing country homes. In July 1921, he formed a partnership with fellow architect William Treanor, founding the firm Treanor & Fatio.

In 1923, the Treanor & Fatio firm was commissioned to design Olympia Beach, a speculative resort to be built in Florida, near Hobe Sound in what is now Martin County. The project was not realized, however Fatio obtained his Florida Architecture licensure in June 13, 1925, under number #AR0000388, and opened a satellite office of Treanor & Fatio with William Treanor and Helmer Olson in Palm Beach. The firm Treanor and Fatio, as well as Fatio alone, designed over 200 buildings, including grand estates and other private residences, in Palm Beach and West Palm Beach for local and New-York based society elites from the 1920s-1940s.

Maurice Fatio married author and poet Eleanor Chase in July 1929. They had two children, a son, Pierre "Petey" Fatio, and a daughter, Alexandra Fatio Taylor. During WWII, Fatio moved to Washington, D.C. to work with the O.S.S. Fatio died of cancer on December 2, 1943, at the age of 46. He is buried in Oshkosh, Wisconsin.

Eleanor Chase Fatio was born in Oshkosh, Wisconsin in 1903. Chase graduated from the University of Wisconsin in Madison in 1921. An accomplished author and poet, she published her first novel, Pennagan Place in 1928, and her second novel The Last of Wisdom in 1932. Eleanor Fatio Chase was prominent in author circles, and was friends with many famous contemporaries, as well as Palm Beach socialites. She married Maurice Fatio in 1929. Chase Fatio died October 21, 1944, and is buried in Oshkosh, Wisconsin.

Alexandra Fatio Taylor was born in 1932, in New York. She was the daughter of architect Maurice Fatio and author Eleanor Chase Fatio, who passed when she was 10 and 11, respectively. Fatio Taylor was raised in both New York and Palm Beach, and attended Palm Beach Public School. Following her parents' passing, she moved to Oshkosh, Wisconsin, and was raised by a family friend, with her brother, Pierre or "Petey." Fatio Taylor attended Skidmore College. Throughout adulthood, Alexandra Fatio Taylor spent winters in Palm Beach, and was an active member of the Historical Society of Palm Beach County, and helped to catalog and preserve their collections of Maurice Fatio's architectural drawings. She authored a monograph of her father's work, titled Maurice Fatio: Architect, and co-authored a biography of her mother titled Eleanor of Palm Beach with Hubert Pryor. Fatio Taylor died June 26, 2015, in Geneva, Switzerland.