Which department does Nanchang complain about the property?

Administrative department of real estate. Complaints about this property can be made to the local real estate administrative department in Nanchang or the Housing Authority. The real estate administrative departments at or above the county level and the Housing Authority may accept complaints related to real estate. Nanchang, referred to as "Hong" for short, also known as Hongcheng and Hero City, is the capital of Jiangxi Province, the center of politics, economy, culture, commerce, education, science and technology and transportation in Jiangxi Province, and one of the central cities in the middle reaches of the Yangtze River.