Change is omnipresent in the modern workplace. Property and infrastructure inherited from the past is therefore increasingly constraint businesses and building users, and requires the provision of higher flexible arrangement to alleviate the impact of change on the workplace. Flexible measures for property and infrastructure usually requires a vast amount of capital investments. And greater emphasis is placed on the capital cost rather than operating cost. Consequently, innovative solutions for improving the degree of flexibility in the workplace and their long-term benefits to organisations and their employees are always overlooked. Space planning and management is a core competence of facility managers. The concept of flexibility has been widened in this respect in order to achieve an effective space utilisation. Reconciling with the changing space arrangement, flexible building services designs are also essential in the workplace. Although there are a number of flexible building services designs that have been extensively adopted in the modern workplace, the utilisation of flexible lighting system is standstill. Exceptionally high capital cost is the main reason that building owners and investors evade to innovate their obsolete lighting system. For many years, building owners and investors placed too much emphasis on the energy issue of the lighting system. As facility management is a profession that brings together a wide range of property- and user-related functions, facility managers should provide a strategic lighting system which can improve individual well-being and economic interest. Flexibility and manageability are also important issues on designing a strategic lighting system. Three lighting systems models are compared based upon a commercial building in terms of their physical, functional and financial performances. The two innovative lighting systems, C-Bus and Digital Addressable Lighting Interface (DALI) lighting management systems, are conspicuously superior to the conventional lighting ...