To better support the adoption of Citizen Science (CS) as research methodology, institutional transformations in the majority of Research Performing Organizations (RPOs) are still required. The EU funded project TIME4CS aims at supporting such institutional transformations through the implementation of concrete actions triggering institutional changes and embedding, in turn, CS within research institutions. Here we present the concept of institutional roadmaps and the reflection tool designed to support RPOs in designing those concrete actions to stimulate institutional changes described in the personalized roadmaps.