Education for Sustainable Development (ESD) has the ambition to activate learners to engage in societal issues by exploring shifting perspectives on ourselves and our complex world. Educators across University of Applied Sciences (UAS) in the Netherlands are working hard to bring this ambition to life by implementing innovative pedagogies that emphasise transformative learning and empower students to take action to ignite societal transitions. However, both literature and practise have yet to establish educational assessment practise suited to ESD ambitions. This Comenius Teaching Fellow project proposes an innovation in the practise of sustainability education by developing an assessment format crucial to the constructive alignment in ESD. Assessment formats will be prototyped within the transformative course Creating Impact at Breda University of Applied Sciences resulting in two main products: (1) innovative assessment format for Creating Impact, including Implementation Toolkit and (2) a generic Design Toolkit ESD Assessment. The products are directly developed for the outlined context, but contribute to the increased capacity of UAS educators more broadly to embed ESD in educational practise. Future educational forms addressing societal challenges must take into account all aspects of educational design, including assessment, to ensure constructive alignment. By focusing on assessment in ESD, the outcomes of this project are an essential contribution to bridging the gap between ESD theory and educational practice, so that, in the words of the Vereniging Hogescholen, we educate our students to become professionals who help build a new, sustainable society