In this paper, the commercial housing buildings based on Disaster Prevention Building Blocks Construction Act since 1961 in Japan are typologically analyzed in external composition and the transition of their several types is found.
Firstly, all target buildings are classified into several types by volume composition, building height, elevation composition.
Secondly, each type’s trend in construction age is analyzed.
Finally, from these results, the relationship and the transition of the types are shown.
This research helps to clarify one of the processes in how various urban building types were established in the post-war period of Japan.
