translation.en: And what people do is they develop their home on one or two stories, and they sell their loggia or roof rights, and someone else builds on top of their building, and then that person sells the roof rights, and someone else builds on top of their building.
translation.zh: 人们所做的就是和他们的家人生活得更贴近, 他们出售他们的凉亭和屋顶产权, 房屋建造在别人的屋顶上, 当这个人出售他的屋顶产权时, 别人就可以合法累建了.