One recognized benefit of Open Government Data (OGD) publishing by municipalities is improvements and newopportunities for public action transparency and citizen participation (CP). However, compared to OGD-driveneconomic value creation, the integration of OGD into CP projects has received little attention. As a result, thereis still limited understanding of the value such CP projects deliver for the municipality publishing OGD and forthe citizens. After analyzing unexploited data from a study we previously conducted, we identify qualities of CPprojects associated with higher added-value for the municipality and the citizens.