On November 3, 1903, he was admitted as a student of Gaston Redon, and with a scholarship offered by the City of Lyon, he obtained his first class degree on July 30, 1906.
Chauchon graduated as a full-fledged architect on February 24, 1920, as part of the 112th promotion with a special project on a group of three residences for employees in Buenos-Aires.
This new hospital continued the work of the first private clinic of Saigon, which was founded by Dr. Marie Angier de Loheac and the Sisters of Saint Paul of Chartres.
The Clinique Saint-Paul is now the Ho Chi Minh City Eye Hospital, with the address 280 Điện Biên Phủ Street in District 3.
[7] In 1937, Chauchon was also chosen to be the architect of the new Cathedral of Phnom Penh, due to the wishes of Apostolic Vicar Jean Chabalier, and the support of Pope Pius XI.
[6] Along with Masson, Chauchon contributed to transforming the architectural style of residential housing in Indochina, and his work history shows that the locale bourgeoisie appreciated the new aesthetic.