This research investigates sustainable project management practices in museum renovations, focusing on balancing heritage preservation with modern visitor expectations. The purpose of the study is to identify and analyse sustainable practices employed in museum renovations, explore how museums integrate historical preservation with contemporary design, and uncover the challenges and best practices in this context. Utilizing a qualitative approach, the study conducted 20 semi-structured interviews with museum professionals, project managers, and stakeholders, followed by a three-step thematic analysis supported by NVivo for coding. The findings reveal that successful museum renovations require a careful balance between environmental sustainability, social inclusivity, and economic viability. Key practices include the use of eco-friendly materials, integration of interactive technologies, and effective stakeholder management. The study highlights the importance of innovative approaches to sustainability, such as adopting green building certifications and modernizing facilities while preserving historical integrity. This research is significant for advancing understanding in sustainable museum renovation practices and provides practical recommendations for integrating sustainability with heritage conservation. It contributes original insights into the challenges and strategies for achieving a harmonious balance between preserving cultural heritage and meeting contemporary visitor expectations.