Inadequate housing measures the proportion of urban households who are living in dwellings that have inadequate conditions based on several criteria, namely accces to basic drinking water, access to improved sanitation, finished and durable or permanent materials used in the construction of floors, wallks and roofs and whether the household is overcrowded with more than 3 people per room within the dwelling. It relates closely to SDG 11.1.1 which measures the share of slum population in urban areas.