Before 1924, delegations stayed in hotels, military buildings, or with local families in host cities, according to the Olympics Studies Centre.
But in 1923, the executive board of the International Olympic Committee (IOC) ruled that a Games’ organizing committee was required “to furnish housing and all necessary services for athletes,” per a 2011 paper published in the Asian Social Science journal by the Canadian Center of Science and Education.
“A contract has to be formed and charges have to be fixed each time,” the IOC said. “Expenses required have to be assumed by the participating nations themselves.”
The organizers of the 1924 Paris Olympics also believed housing athletes together had benefits beyond logistics and cost.
“In bringing young people from every nation together, [the Olympic Games] help foster this sense of cordiality that teaches men to become acquainted with each other better first and then to hold each other in higher esteem, a process that the Paris Games will have greatly aided,” said Frantz Reichel, the secretary-general of the organizing committee of the 1924 Paris Olympics, according to The Olympics.