Green building is the core content of human habitat construction. The wind environment and nitrogen oxides of motor vehicle emissions of an urban community in Tianjin city were simulated based on the RNG k-epsilon turbulence and pollutant dispersion models. Three evaluation indices were proposed according to the regulatory requirements of green building and air quality standard of China. The satisfaction of these regulatory requirements for an urban community was evaluated under the condition of typical wind of different seasons. The results showed that the proposed evaluation indices can be used in the satisfaction evaluation of green buildings.