Traditional houses are catastrophically destroyed due to lifestyle changes over the centuries. Considering that most of the historical buildings are traditional houses, it is possible to understand the importance of studying and paying attention to this type of building. Therefore, the issue of sorting traditional houses and classifying the patterns used in them can be important for identifying and classifying similar buildings. In this research, which has been done through analytical method and in a part of historical interpretation of the study of buildings, an attempt is made to study the types of traditional houses in Kermanshah. The purpose of this study is to identify the species in the houses of Kermanshah in the Qajar period. The reason for choosing this city and this period is access to specimens and the existence of species. The home is a place where the occupants do not feel uncomfortable, and inside the house or where the wife and children live, there should be a lot of variety so that they do not feel tired. Finally, the finding of this study was that paying attention to the elements of traditional houses due to flexibility with today's demands will be able to respond to a pattern for up-to-date design. There are two types of houses, introverted and extroverted, but in some cases, due to the passage of time and lifestyle changes, the type of species has changed.
