The minimum housing standards, standing for realization of the right to housing, have been tending to change in accordance with socio-economic conditions. So the investigation of spatio-temporal patterns of households not fulfilling these standards is important to establish housing welfare policy. As yet due to the lack of consistency regarding data and standards, the precedent studies cannot give us accurate pictures of changes and spatial characteristics about thespatio-temporal patterns in Korea. This paper estimates the spatio-temporal changes of housing conditions focused on the minimum housing standard with consistent standards and data. The main findings may be summed up as follows; we can get more robust spatio-temporal variability results. Owing to the provision of many new houses, 1995∼2010 the rate of households under the standards is decreasing from 46.3 to 11.8. By contrast, recently marginal housing units for residences, such as vinyl house and gosiwon are increasing. Despite overall improvements of housing conditions, many households still suffer from the lack of adequate living space, so the key component of standards has changed from facilities to space. The problem of overcrowded housing has been serious in major metropolitan cities, especially Seoul Metropolitan Area.