For the demolishment stage of buildings, there are three main
categories of energy consumption: the energy use from on-site demolition, the energy use for transporting wastes and the energy use for wastes disposal. As the same problem of data availability exists in adopting the lifecycle assessment method, it is
extremely difficult to undertake the research for analysing the energy consumption and carbon emissions in the demolishment stage because of the lack of data. Therefore, there are no available cases can be used in this study.