“…Likewise, consumers' willingness to pay for green building apartments has been studied by many scholars in green building development (e.g. Li et al, 2018;Yau, 2012;Portnov et al, 2018;Njo et al, 2021). As clarified by the research, consumers' willingness to pay for green housing was determined by their demographic characteristics including gender, age, education, or income (Li et al, 2018;Yau, 2012;Hu et al, 2014b), some psychological variables such as environmental attitude (Yau, 2012), environmental awareness, perceived behavioural control, subjective norm (Njo et al, 2021;Pommeranz and Steininger, 2021;Zahan et al, 2020), perceived benefits and costs of green housing (Zhao and Chen, 2021) or external attributes of green apartments (Njo et al, 2021;Zalejska-Jonsson, 2014;Park et al, 2013).…”