After the integration of Shenzhen dual certificates, owners can buy more houses. Shenzhen shuangpinfang will allow two certificates to be integrated, that is, buyers only need to apply for a real estate license to own all the rights and interests of shuangpinfang. There are at least 90,000 sets of "double houses" in Shenzhen, which are distributed in various districts of Shenzhen. The merger means that at least 45,000 high-net-worth families in Shenzhen have changed from two-bedroom to one-bedroom, and they can buy another house. Shenzhen, referred to as Pengcheng for short, is a prefecture-level city under the jurisdiction of Guangdong Province and a city with separate plans. It is a megacity, a special economic zone, a national economic center city and a national innovative city approved by the State Council, and one of the core engine cities of Guangdong-Hong Kong-Macao Greater Bay Area.