This deliverable presents the development, structure and piloting of the GenderSAFE Institutional Assessment Tool, designed to support higher education and research institutions in evaluating their capacity to prevent and address gender-based violence. Grounded in the UniSAFE 7P framework and adapted from the CASPER impact driver model, the tool enables institutions to reflect on their progress, identify gaps, and benchmark their efforts across key impact areas. The report outlines the conceptual foundations of the tool, details its structure and use, and summarises the results of a piloting phase involving multiple institutions. Feedback from pilot users confirmed the tool’s clarity, comprehensiveness, and potential to foster institutional learning, while also highlighting areas for improvement. Based on these findings, the deliverable offers key recommendations for enhancing the tool and supporting its future integration into institutional practices for tackling gender-based violence.