This study clarifies methods and characteristics of the first zoning designation by the city planning law(CP law) and the building regulation law(BR law) of 1919 in the cases of 43 small and middle scale cities. Zoning designation was delineated deliberately in order to limit zoning area into necessary minimum. General process of zoning delineation was from commercial, through industrial, to residential zone and zoning designation was obeyed zoning decision standard well. Although the first zoning system had only 3 zone-kinds, within such a limited situation best designation was sought in all examples. In many examples planners interpreted the zoning regulation as land use plan, not as building use regulation. Because zoning system was prescribed not under CP law, but under BR law, zoning designation was not utilized enough.
