According to relevant information, the investment return period of the revival and development of the Imperial Capital was uncertain, with high risk and low return rate, so it failed.

The scope of Xi 'an Huangcheng Renaissance Plan includes three parts. The first part is the core area of "Tanghuangcheng", that is, the area within the ring road; The second part is the "Tanghuangcheng" coordination area, which refers to the area where the ring road extends 200 meters to 500 meters; The third part is the related area of "Tanghuang City", which refers to the ruins of Daming Palace and Xingqing Palace in Tang Dynasty. Within this scope, the planning department has established the protection system and protection list of the old city, and strictly implemented the zoning control of building height in the old city.