Platform economies are reorganising the everyday conditions through which urban residents feel connected, isolated, or at home. Discussions of gig work typically begin with flexibility and income, overlooking how apps, ratings, incentives, and algorithmic decisions reshape the social setting of work itself. This chapter argues that urban loneliness should be understood not only as a private feeling but as an outcome shaped by how work, time, and urban space are organised. Drawing on social capital theory, economic sociology, urban studies, and research on algorithmic management, the chapter develops a conceptual framework explaining how platform design weakens some forms of social connection while enabling new forms of worker solidarity. The discussion considers how these dynamics intersect with gender, psychological strain, and migrant status. Cases from Uber, Ola, Urban Company, Indian delivery platforms, New York City, Seattle, the European Union, and India's social-security framework illustrate these dynamics in practice.