Compared to green buildings, communities are more regional-oriented, therefore, almost the big cities in European and American own their self-evident assessment of the ecological community, such as Seattle (Sustainable Seattle), Montreal (Neighborhood Sustainability Indicators) of North America, "Residential green building elements and the Technical Guidelines" of China Ministry of Housing and Urban he (2001), or even CASBEE-UD of Japan (2006), LEED-ND of USA (2009). Taiwan also developed our evaluation system of ecological communities which with equal importance of ecology and function, and is expected to be promoted from the end of 2010.