This thesis investigates sustainable renovation alternatives for campus buildings at TU Delft, aiming to contribute to the university's sustainability goals and promote energy-efficient building renovation solutions. The study uses a Multi-Actor Multi Criteria Analysis (MAMCA) framework to evaluate two main alternatives: the implementation of a green roof and an energy efficiency upgrade (EER) project. Stakeholder engagement and analysis is an important aspect of the research, with input gathered from a variety of campus users, including academics, students and Campus Real Estate & Facility Management (CREFM). The criteria considered in the evaluation include environmental, social, economic and technical dimensions, reflecting the multifaceted nature of sustainability. Subsequently, sensitivity analysis are conducted to assess the impact of different stakeholders' preferences on the ranking of alternatives, thus exploring possible trade-offs and aligned views. The results show that green roofs perform favorably on most criteria, particularly in promoting biodiversity, preserving habitats and producing sustainable energy. Despite the challenges posed by limited data availability and stakeholder response rates, this research introduced an effective decision-making framework based on the inclusion of stakeholders and concluded that the multiple interests of different stakeholders can significantly influence the decision making process in sustainable renovations.