Protection Boundary Development in Historical–Cultural Built Environments Using Analytical Hierarchy Process (AHP) and Geographic Information System (GIS)

Contemporary urban environments continuously transform and evolve due to rapid urbanisation and development pressures, putting historical and cultural heritage sites at risk. To cope with this, it is essential to frequently re-evaluate and redefine protective boundaries and strategies for developing them to reflect current and emerging urban patterns. Defining protection boundaries is an inherently complex task consisting of intricate and interrelated spatial, social, and cultural networks and elements. What is more, the data layers used to represent different dimensions of cities are diverse and generated by various sources. In order to make any decision capable of addressing this multifaceted problem, it is essential to employ a thorough decision-making framework capable of accounting for multiple criteria. In this study, a combination of the Analytical Hierarchy Process (AHP) integrated with Geographic Information System (GIS) offers a structured approach to managing the complexities of setting these protective zones. Despite their extensive use in diverse site selection contexts, applying AHP and GIS to determine urban protection boundaries remains underexplored. The method was explored and tested in a case study in North Cyprus. The proposed method systematically includes economic, architectural, environmental, social, and legal data layers, aiming to generate a more comprehensive model for developing protection boundaries tied to multidimensional and contextual complexities, as well as considering rapid urbanisation patterns. The study contributes to the ongoing discourse on heritage preservation and sustainable urban development by providing an evidence-based analytical method for managing the evolving challenges of urban heritage protection. The results indicate that experts see social and environmental factors as the most significant, emphasising the significance of community engagement and ecological considerations in heritage conservation. Additionally, the study highlighted regulatory gaps, particularly in maintaining architectural compatibility within the historical context. These findings underscore the importance of integrating stakeholder perspectives and adjusting local regulations to enhance the resilience and effectiveness of heritage protection strategies.