Taking a deep dive into micro-segregation in the socially mixed and dense centres of compact cities, the authors investigate the form and content of social and ethno-racial hierarchies at the micro-scale of different cities around the world and the ways these have evolved over time. Vertical Cities considers the ways the materiality of such hierarchies affects the reproduction of social inequalities in today’s large cities. Academics and researchers of urban sociology, housing, urban regeneration, urban studies and urban geography will find the original approach taken to this under-researched topic to be a vital resource. Practitioners and policy makers will find the innovative use of a common theoretical frame to analyse micro-scale social mix in vertical/compact cities informative when dealing with the management of neighbourhoods in inner cities.