Abstract This research discusses the priorities of real estate development compared among the top four population-gathered cities in Taoyuan County. By interviews and questionnaires from the professionals, we find out the factors that influence the real estate development in these four cities. Following that, we employ the method of analytic hierarchy process (AHP) to identify the priorities among the factors and the key points to the policy-making of the regional real estate development. This research concludes that Taoyuan City is the best choice for real estate development, following by Jung-Li City, Ba-De city and Ping-Jeng City.