In this article, we consider the problem of ensuring that Education for Sustainable Development (ESD) is firmly embedded in a school through appropriate management and planning of the school’s activities (or characteristics of the school organization). To this end, we identify the domains of school organization that would benefit from particular structures and routines in order to embed ESD. We identify these domains by thematically analyzing responses of interviewed leaders of schools employing a transformative approach to ESD. We divided the leaders into two groups, based on the extent to which their respective schools employed a transformative approach to ESD. We analyzed the differences in responses of the two groups, enabling us to identify and compare the structures that school leaders in the respective groups believe to be important. In addition to reporting the results, we discuss their implications. We focus particularly on how structures identified by leaders of highly transformative schools could contribute to long-lasting transformative implementation of ESD, and how structures identified by leaders of the other group could be used to circumvent barriers to such implementation.