Florian Urban studies the history of mass housing in seven narratives: Chicago, Paris, Berlin, Brasilia, Mumbai, Moscow, and Shanghai. Investigating the complex interactions between city planning and social history, shows how the modernist vision to house the masses in serial blocks succeeded in certain contexts and failed in others. Success and failure, in this respect, refers not only to the original goals – to solve the housing crisis and provide modern standards for the entire society – but equally to changing significance of the housing blocks within the respective societies and their perception by architects, politicians, and inhabitants. These differences show that design is not to blame for mass housing’s mixed record of success. The comparison of the apparently similar projects suggests that triumph or disaster does not depend on a single variable but rather on a complex formula that includes not only form, but also social composition, location within the city, effective maintenance, and a variety of cultural, social, and political factors.