The objective of this research is to create a database of performance benchmarks for airport facilities. Airport staff need a better understanding of key operational metrics associated with building performance in order to improve efficiency, decrease operating costs, and reduce environmental impacts. A standard system which normalizes for weather, location, carbon intensity of utility supplied energy, and airport specific use characteristics needs to be developed for the use of all airports. This benchmarking system would provide a means for airports to evaluate the performance of existing facilities and assets, compare the benchmark performance with similar airports and airport facilities, and plan and execute improvement projects to reduce the energy, water, waste, and GHG emissions associated with those facilities and assets. A benchmark system that is specifically designed for use at airports would enable better design and construction processes with more realistic performance targets for new construction projects.