The work shows that in Bogotá, urban informality, which allows high mutability of the residential infrastructure, by interacting with traditional and necessary family practices in popular groups, generates a high complexity in the forms of domestic organization that is maintained despite the legalization processes. Cohabitation (more than one household per dwelling) is studied in depth, seeking to establish its statistical relationship with individual, home and dwelling characteristics, and biographical characteristics of the neighborhood. To do this, two multivariate logistic regression models are carried out: one for all census sectors classified as low social level, and another comparing in these sectors, those of formal and informal origin. To this aim, demographic census information was harmonized with spatial information that allowed the classification of the urban area based on its social level and urban origin, which was included as an independent variable. [ABSTRACT FROM AUTHOR]