As the Administration Headquarters of Tung Wah Group of Hospitals (TWGHs), the property management team underwent a series of improvement initiatives in phase to improve the sustainability performance of the building. First, its facility management practice has been improved, that leads the building to have attained the environmental management system certification under ISO 14001 and energy management system certification under ISO 50001. Also, a series of site related improvement initiatives has been enforced, including the installation of a green roof, introduction of organic farming programme for the building users and signing of the charter on external lighting. Moreover, green procurement and recycling policy has been formulated and implemented. Over 70% of ongoing consumables purchased are environmentally friendly. Most importantly, energy saving practices have been put in place, for example, equipment and lighting are controlled on and off based on the operation schedule, in order to avoid idling.