It was found by analyses as below how occupants feel disharmony when they live together:
1. Occupants sometimes feel disharmony in daily life, and it happens when occupant's private area and behavior area are overlapped with family areas and their behavior areas;
2. To understand the reason that occupant feels disharmony in the house when living together, occupant's private area and behavior area was analyzed. As the consequence, it turned out that occupant's behavior area was smaller than his/her private area overall; and,
3. According to the analysis of relationship between the occupant's private area and behavior area, and family relationship, three types of family relationships were found: 1) the type of invasion of mother's area, 2) the type of balanced invasion of areas, and 3) the type of free invasion of areas.
