Abstract
The date of construction, the region, and the class to which the residents belong, are the three major factors which decide the order of the private houses of modern age in Japan. As the result of the investigation on private houses since the World War II, I have found that the order can be regarded as "function" with the above mentioned three elements as "variables". Especiallywith the examples of small areas in the mountain district in the central part of Japan, I have explained the relationship between each small area and the development of the detailed order.
