Sustainable construction projects affect various stakeholders with different social, environmental and economic interests. It is essential that the decision makers maintain effective communication with relevant groups to avoid project failures. Although citizen participation offers a means of better addressing and meeting stakeholder concerns and expectations, the decision/evaluations of contemporary sustainable projects are becoming ever more complicated, with an increasing number of stakeholders involved to actively defend their own interests. In response, this paper provides a thorough and comprehensive analysis of the stakeholders of sustainable construction in China and quantifies their influence in decision/evaluations by semi-structured interviews (in research stage I) and a three-round Delphi survey (in research stage II). Follow-up interviews (in research stage III) are carried out to collect more in-depth views concerning the characteristics and the respective importance of each stakeholder group involved. The findings indicate that the government is the most influential entity and the extent to which its intervention is needed in balancing the interests of other stakeholders presents a major challenge. The high potential influence of end-users is also identified, suggesting the need for a more transparent and inclusive participatory decision/evaluation process in the country. An enhanced future role for NGOs is further identified.