The aim of this article is to clarify the possibilities of housing and environmental improvement at the high-density built-up areas in Tokyo-kubu based on the outputs of last two years. In order to estimate the drastic change of residential environment, studies are composed of two parts. At the city and ward level. Housing demand and its meaning for the district are forecasted, and at the district level, relations between housing reconstruction and lot conditions are analysed. After that, the indices for grouping of treatment types are reestimated, especially from the possibilities view, then, direction of improvement is indicated.
