Greenness Evaluation of Rural Residential Buildings Based on the Composite Perspective of Environment–Building–Resources

Based on the composite perspective of environment–building–resource (EBR), influencing factors of the green performance of rural buildings were sorted out through brainstorming and Delphi methods, an innovative comprehensive evaluation system was constructed, and the weights of the indicators were calculated through the fuzzy analytic network process (FANP). The EBR green performance comprehensive scoring standards of each influencing factor were established by means of a questionnaire, field measurement, and numerical simulation. As typical representatives of human-populated areas in southwest China, 13 villages in the second circle of Chengdu were selected as case study areas by means of the regional average distribution theory and minimum sampling criteria. Through innovative combination of the obstacle degree model and spatial interpolation analysis, the key factors affecting the greening of rural buildings were diagnosed. The results showed that the indoor thermal environment (E21), the indoor light environment (E22), the popularity of biogas facilities (R12), and green building material usage (R13) have a significant impact on the EBR greenness score. The EBR score of the study area shows a spatial distribution pattern of high in the west and low in the east, with extremely uneven scores in various dimensions. Based on the key factors identified through system evaluation, a refined exploration was conducted of promotion strategies and measures, and greenness improvement suggestions were proposed to provide ideas for the sustainable transformation of rural residential buildings.