noun
urbanization control area; urban control area
A legal zoning designation under Japan's City Planning Act where most new construction is restricted to prevent disorderly urban sprawl. Often contrasted with 市街化区域 (urbanization promotion area).
この土地は市街化調整区域に指定されているため、新しい家を建てるのは難しい。
Because this land is designated as an urbanization control area, it is difficult to build a new house.
市街化調整区域では、原則として開発行為が制限される。
In urbanization control areas, development activities are restricted in principle.