Green building rating systems provide an effective framework for evaluating the sustainability of the building by using different criteria. Specific rating tool is used for assessing each different type of building while fulfilling their special requirements. There is an emerging research gap in Sri Lanka to develop green building rating tools for specific nature buildings. This research is established on development of a green building rating tool for hotel sector in Sri Lanka to preserve the sustainability. Eight main criteria such as; energy efficiency, water efficiency, occupant health and comfort, material and resource selection, sustainable site planning and management, waste management, innovation and cost effectiveness and social and cultural identity were identified together with seventy indicators by considering local conditions and special requirements of the building type. Data was analysed by considering their relative importance and points were assigned according tothe analysis. Highest points were allocated to energy efficiency category.