The pre-sale results of newly sold apartments are very important for the stable operation of the project. Therefore, operators are trying to understand market demand. In addition, academic studies are conducted on the results of the sale. However, there is a limitation in analyzing the factor of the individual unit level because the study on the contract rate is mainly performed in the previous study. Therefore, this study analyzes whether the contract is made within the contract period considering the characteristics of individual units. The data used were data from 101,770 households in 180 counties nationwide from 1995 to 2016. The results of the analysis are summarized as follows. As the rate of increase in interest rates increases, the probability of contract decreases and the probability of contract increases as house price index rises. In addition, housing policy that restricts demand or supply has a significant effect on contract probability. In the complexity characteristics, the contract probability was affected by the size of the complex and the block design. In the characteristics of location, the probability of contract is higher when living facilities are nearby. In terms of sales characteristics, the probability of contract is high when the burden of the interest of the home purchase fund is reduced. In the generation characteristics, the contract probability is affected by the area, the private area rate, the ratio in the total unit number, the number of floors, and the direction.