With the rising house prices in recent years, buying a house requires a large amount of money. How to select a house that meets the buyer's needs and that is affordable has been an important issue. With the actual real-estate transaction prices collected in the study, potential factors that might affect house prices were also included, such as macroeconomic indicators, stock market index, wholesale and retail trade, transportation and storage industry, information and communication industry, finance and insurance industry, real estate and residential and service, public administration and defence, and economic indexes from other industries. Three types of classification were adopted for data division, including luxury house and average house, city and township, and timing of the housing policy. Pearson product-moment correlation coefficient was utilized to locate genuine factors that affected house prices in each classification. The results were further analyzed with multiple regression for a more accurate model of house price estimate.