In the specification of housing hedonic price models, log prices are functionally related to different types of housing attributes: the physical characteristics of the house itself, geographic location of the property within the city, and its amenities. In most hedonic house price models, the age and quality of the structure is a significant variable. Unfortunate-ly, this data was not available. However, some researchers assert that in Beijing's housing market, housing complexes are quite similar in terms of architecture design, building structure, internal space and decoration (Zheng & Kahn, 2008). And particularly in the case of underground units, whose basic structure has followed air defense building codes, there is not much variation in structural construction while indeed there will be important differences in other measures of housing quality that we will not be able to detect, except for the stated amenities.