The mayor grew up in a building so decrepit — filthy hallways, no private toilets, no showers — that his friends in nearby concrete towers pitied him. Five decades later, that building — in St.-Ouen, a Paris suburb — is a distant memory, and in its place rises France’s Olympic pride: the athletes’ village, with its architectural-showcase buildings that are outfitted with solar panels, deep-sinking pipes for cooling and heating, and graceful balconies from which to look down on the forest planted below. One-quarter will become public housing after the Games.
