However, around 2005, various efforts by the market sector and the relaxation of regulations by the government began to gradually take effect, and the development and construction market took an upturn. Subsequently, efforts to utilize existing building stock were put aside. The economy recovered first in the central, highland-price areas in cities, and then in the surrounding areas. In addition to the high-profile redevelopments such as the Roppongi Hills and the Mitsui Building in Jinbocho, small developments were conducted in many places, and the efforts to utilize old building stocks became less active. So, is “utilization of building stocks” already a thing of the past? Is stock utilization just a “poor man’s” choice in a bad economy?