The use and operation of lecture theatres (construction and maintenance, heating, lighting and water consumption) and day-to-day consumption of sundries (paper and plastic bottles).The results indicate that the heating and construction of buildings are the “hot spots” in the system,for most environmental inpacts.Different waste management options for the plastic and paper including recycling, incineration and landfill,have also been compared for environmental impacts and economic costs. The option combining 70% recycling,29% incineration and 1% landfill has been found to be most economically and environmentally sustainable.