This article on the history of neighbourhoods (para) of colonial Calcutta considers the processes through which this peculiar spatial unit emerged in the colonial city, where community identities were fostered as well as contested. Seen as a place, a secured, stable location which helped in forming the community in an alien atmosphere, the para was a liminal space, neither a purely affective unit nor an administrative category, and neither a purely public or private domain. Borrowing liberally from each register to generate a unique spatial experience, paras were at the same time deeply exclusionary and also starkly patriarchal zones. The article brings forth these various strands in the history of the neighbourhood to enrich the understanding of colonial urbanism, Bengali society and culture.