%X This research aims to identify the main barriers and opportunities for green roof adoption in the municipality of Groningen, with a focus on homeowners and urban planners. This research employs a mixed method to achieve this goal by using a survey among homeowners and in depth interviews with urban planners and a green roof owner. The results of the analyses indicate that the main barriers include a lack of knowledge on green roofs among homeowners, a discrepancy in perceived responsibility for local water management between homeowners and urban planners, and a lack of shared urgency and reactive approach within the municipality. The proposed opportunities for increasing green roof adoption are community-based projects and increased proactive promotion of green roofs by the municipality. Furthermore, a linear regression analysis indicates that felt responsibility for local water management is significantly associated with gender, but not associated with other included sociodemographic factors. %L theses_frw2463 %D 2019 %A R.T.B. Adriaanse %T Green roof adoption in the municipality of Groningen: barriers and opportunities