The global emphasis on sustainable building design has extended to religious institutions, including mosques. Incorporating sustainable principles into mosque architecture has given rise to a unique typology of worship spaces. Advancing the sustainability agenda within mosques across the country requires more than just implementation methods. It necessitates a thorough understanding of effective facilities management practices tailored to sustainable environments. As awareness grows, mosque facility managers are beginning to recognize the critical importance of managing their spaces in ways that harmonize environmental responsibility, social well-being, and economic efficiency. However, there are several issues that have been identify are lacking in multiple aspects such as lack of staff, fund allocation, lack of knowledge and expertise, and lack of senior management to handle the mosque. Therefore, this study aims to explore and analyse strategies for improving the implementation of facilities management practices in sustainable mosques. The primary objective is to identify and examine the key areas where improvisation can enhance the effectiveness, efficiency, and sustainability of mosque facilities management. This study used a quantitative method of data collection and questionnaire distribution. The data were collected from the respondents, including worshippers, visitors, the mosque’s committee, and the facilities management team. A purposive sampling method was employed to specifically select individuals from each group who were relevant and knowledgeable in relation to the study objectives. The findings highlight three key strategies: (1) to strengthen the financial management by improving mosque committee, (2) to improve and create proper connection on facilities management provider with proper skills and knowledge for sustainable facilities, (3) to provide and evaluate the training for all committee members in mosque. Thus, it is hoped that this study will improve the facilities management in managing sustainable mosque.