Citizen-led activism to demand and secure adequate housing rights, infrastructure, and services in Islamabad forms part of a longstanding socio-political movement in Pakistan. This activism brings together different classes of urban residents. Drawing from qualitative research comprising of 129 interviews, this article reveals an emerging ‘overlapping politics’, defined as the political relationship between two (or more) distinct socio-economic classes of citizen(s) in response to any form of injustice or inequality. This (re)conceptualises everyday forms of urban political practice by countering existing assumptions that urban politics is rooted in class homogeneity. Inspired by the Islamabad case, I argue that ‘overlapping politics’ emerges largely as an alternative to, and progression from, clientelistic politics through four modes where ‘overlapping’ occurs across class lines: knowledge and information; networks and membership; support; and ownership and responsibility. The outcomes of ‘overlapping politics’ manifest spatially in the city, for example through increased interaction between urbanites, privately organised service provision, and urban protests. Although the practice of ‘overlapping politics’ has limitations, it provides an important new conceptual tool and language for understanding and analysing forms of politics that are embedded in cross-class relationships between urban citizens.