Gentrification and Neighborhood Change

The term gentrification entered urban sociology in 1964 when the German-British sociologist Ruth Glass, working at University College London, observed a pattern in several London neighborhoods. In London: Aspects of Change, Glass described how 'one by one, many of the working-class quarters of London have been invaded by the middle classes — upper and lower.' Shabby terraced houses that had been subdivided for multi-family occupation were, in the 1950s and early 1960s, being reclaimed and refurbished by incoming residents with higher incomes and more cultural capital. Islington, Camden Town, and Chelsea were among the early cases. Glass coined the word by analogy with gentry — the historical English social class that had once populated these areas — and the term carried a critical edge from the start. She insisted that when the process had run its course, 'the whole social character of the district is changed.'

Glass's conceptual innovation mattered because earlier urban sociology, particularly the Chicago School's ecological succession model, had described neighborhood change as a quasi-natural sequence of invasion and succession, implicitly likening human residents to plant species. Her account, by contrast, made clear that gentrification was driven by specific human actors with specific economic motives, within a specific political economy. It was not the blind working-out of ecological law. The analytic move set the agenda for decades of subsequent research: to identify the actors, to map their motives, and to connect these to broader structural forces.

The gentrification process Glass identified accelerated and globalized in the decades that followed. By the 1980s examples could be documented in virtually every major city in the Global North — Brooklyn, San Francisco's Mission District, Prenzlauer Berg in East Berlin, Spitalfields in London, the Marais in Paris — and by the 2000s and 2010s in major cities of the Global South as well, including Shanghai, Mumbai, São Paulo, and Johannesburg. Each case had local specificity, but common elements recurred: older housing stock in a central or centrally-accessible area; previous population of lower-income or minority residents; progressive arrival of middle-class in-movers (often artists first, then professionals, then finance); rising property values; commercial transformation from neighborhood-serving businesses to cafés, boutiques, and restaurants oriented to the new residents; eventual displacement of parts of the original population.