Department of Social Welfare in Ministry of Health and Welfare organized the Housing Corporation in 1941. Just before it, the department held a conference and made 'the designing standards for housing and its surroundings.' Until now we have considered the house types of the designing standards to be lacking relationship with family members. This study reviews the plans for designing standards in the conference, and clarifies that they were planned based on family members and uses of rooms while asleep and made to determine the designing standards.