A Study on the Decarbonization triggered by the Improvement of a Densely Built-up Area

The central government of Japan announced carbon free society up to 2050. However, decarbonization at built-up area is difficult, as low carbon facilities such as insulation walls, PVs should be installed at the rebuilding-stages. The purpose of this study is to clarify the decarbonization at the high-density and low-rise residential areas with great number of burnable houses in Tokyo where disaster prevention is essential. The paper firstly reviews the situation of these areas, followed by the analysis of reduction of energy consumptions at the rebuilding stages. Aa a consequence, we pointed out following two are important for decarbonization in these densely built-up area; promotion of rebuilding of old burnable houses and consideration of regulation for high-rise developments.