During Britain's rapid industrial urbanization, working-class families were commonly housed in hastily built, overcrowded tenements concentrated in urban slums. These dwellings lacked reliable access to clean water, adequate sanitation, and organized waste disposal, leaving refuse and sewage to accumulate in streets, courtyards, and shared water sources. These cramped, unsanitary housing conditions created the environmental conditions that fueled the epidemic disease outbreaks and public health crises examined in the next topic.