This chapter explores how urban life in Haiti unfolds within a context marked by informality, precarity, and structural exclusion. In the absence of effective state intervention, households and communities construct their own survival strategies, ranging from informal housing and grassroots service provision to vernacular forms of governance and territorial organization. These practices reflect both resilience and vulnerability: while they enable access to housing, services, and livelihoods, they also expose populations to chronic risks such as environmental hazards, social violence, and tenure insecurity. Informality, far from being a marginal phenomenon, emerges as the dominant mode of urban production, shaping spatial configurations and social relations. Yet, this everyday urbanism also generates forms of territorialization that challenge state authority, creating alternative logics of recognition, negotiation, and citizenship. By examining the intersection of vulnerability and agency, the chapter highlights the paradox of urban informality as both a source of inequality and a site of innovation. Ultimately, it argues that understanding Haitian urbanization requires moving beyond normative models of formal planning to acknowledge the embedded, situated, and negotiated practices through which citizens actively produce and transform their urban environments.