The present study aims to explore the attributes of interpersonal relationships, as a socio-psychological dimension, and their beneficial or detrimental effects on locally specific participatory processes in a Turkish context. Following this, an analysis of the effect of the relationship on locally specific participatory processes is presented, through a comparative assessment of processes in four local cases which were partners of the Local Government & NGO Cooperation in Participatory Democracy Project. This research, designed as an exploratory case study, determines some of the unexplained factors affecting participatory processes. Finally, the study reveals that, relationships, change in relationships, trust, rivalry, dominance, hidden agendas and jealousy are all perceived attributes of the interpersonal relationship dimension in the Turkish context. While the interpersonal relationship dimension enhanced the participatory process in two of the four cases (Odunpazarı and Seyrek), it hindered the participatory process in Gazi and Kaymaklı.