Feminist and comparative approaches offer the opportunity to revitalise urban theory for the 21st century. There has, however, been a lack of engagement between these two traditions to date. This paper proposes a method of feminist comparative urbanism that is grounded in ‘dialogic collaboration’ with social movements with a view to generating situated knowledge of urban struggles over social reproduction. This method is developed by comparing sex worker union organising in Córdoba, Argentina, and housing activism in London, UK, in order to explore the urban politics of infrastructures of social reproduction in different contexts. Comparison reveals that these movements are both connected by common processes and distinguished by contextual differences. We argue that feminist comparative urbanism can inform a theorisation of the urban as constituted by everyday struggles over social reproduction that exceed capitalist processes of urbanization, yet
which are central to the reproduction of urban life.