How do Japanese permanent residents apply for county or city housing?

To live in a county or city camp, you must first apply to the district service office or service office. According to your year, see if you are qualified to live. The requirements for annual income are very strict. If you are qualified, you can have a house. However, because there are too many people asking to live in this kind of house, they usually have to wait for the lottery. You can't go in until you win the lottery. I used to live here, but it's very troublesome anyway. Review your income every year after you check in and decide your room rate according to your income. You write children's households? I don't know what that means.