Backlog merupakan isu perumahan yang hampir ada di semua negara, termasuk Indonesia. Banyak penyebab terjadinya backlog. Di Ingriss, keberadaan concealed household disebut-sebut sebagai penyebab utamanya. Fenomena concealed household sebenarnya juga mudah ditemui di masyarakat kita yang syarat akan kekerabatan extended family-nya. Meski pun demikian, tidak banyak orang mengetahui fenomena ini. Penulisan skripsi ini dilakukan guna memahami fenomena concealed household lebih baik, mengetahui penyebabnya, dan bagaimana dampaknya terhadap hunian eksisting. Dengan melakukan wawancara dan observasi sebuah keluarga beserta perubahan huniannya dari waktu ke waktu, didapatkan bahawa concealed household dapat terjadi karena dua faktor, yaitu faktor kekerabatan dan kemampuan finansial rumah tangga.

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Backlog is a housing issue which occurs almost everywhere, including in Indonesia. There are many causes the backlog issue occured. In England, concealed household is said to be the main factor which causes the backlog. In fact, this concealed household phenomenon is actually easily found in our society as well, which known for its extended family kinship. Yet, not many people are aware of it This paper is written in hope to get a better understanding of what concealed household is, what the causes are, and the effects given to the exsisting dwellings. By interviewing and observing a family and its dwelling transformations through times, given conclusion that concealed household can be caused by two factors, which are the kinship and the financial state of the household.