The present state of the total floor area of the public building stock was investigated in this paper. It was found that the total floor area of the public buildings is about 700 million square meter and the majority of which belong to the local governments. The public buildings can be classified into apartment house, school and others, and it was found that the three classifications are balanced with the number of ridges and the total floor area. The most of the public buildings were constructed less than 30 years, and the buildings constructed over 30 years ago are under rebuilding now. The local feature can be seen from the uses and construction years. The public building stock must be utilized effectively in the future.
