The coastal city of the Gold Coast, Australia is the first of eighteen sub-domain studies within South East Queensland (SEQ) that has been measured using the index of sustainable functionality (ISF). As a quantitative definition of sustainability, the ISF offers an adaptive method of measurement. It does so based on an engineering standpoint that institutes stable energy and mass transfer indicates longevity over spatial and temporal scales. Sustainability trends are measured using adaptive sustainability which incorporates complex interactions by making use of a matrix-based approach. Twenty-three functions were utilised in the study and measured against a total of 53 indicators. The span of the research is between the years 2000 to 2005. The results of the study indicate that the ISF of the Gold Coast can assist in improving the overall sustainability of the region. The overall result shows sustainability trends have slightly improved and are heading toward a sustainable blueprint for rapidly developing regions. Monitoring of trends would reduce future unsustainable action and optimise the ISF to the region and beyond.