Understanding and Enhancing the Effectiveness of Adaptive Reuse of Built Heritage: From an International Context to Application in Iran

Adaptive Reuse (AR) of heritage buildings is a sustainable approach to preserving cultural heritage while accommodating new functions. Despite the growing importance of AR in the last decades, a lack of comprehensive models for AR, particularly concerning heritage buildings, persists. This research addresses this gap by developing a model that guides architects in the AR process, drawing on international literature and Dutch AR practices, with a focus on its adaptation and possible application in the Iranian context.
A systematic review of the literature revealed a lack of overarching models for AR, and led to the development of a conceptual model. This model includes 10 steps, which are: “initiative”, “analysis of the building and its surroundings”, “value assessment”, “mapping the level of significance”, “adaptive reuse potential (function)”, “defining the design strategy”, “final decision-making”, “execution”, “aftercare and maintenance”, and “evaluation after years”. In addition, based on the analysis of 48 award-winning AR projects in the Netherlands and Europe, six key criteria for effectiveness were identified: sublimation-architectural aspects, sublimation-cultural aspects, social value creation, environmental sustainability, economic value creation, and innovation aspects.
Testing the initial model in the Dutch context, led to further development into the EARHB model, enriched with methods and tools used by the architect in the different steps of the AR process. In this dissertation, the EARHB model, including its methods and tools, is referred to as the EARHB framework.
Research on Iranian AR projects and interviews with architects demonstrate the EARHB framework’s potential, confirming that some of its process steps, methods, and tools are in use. Some limitations, due to cultural, regulatory, and practical constraints, might affect full implementation of the framework in Iran. Nevertheless, the potentialities of the proposed EARHB framework, offering a comprehensive and adaptable approach for enhancing the effectiveness of AR projects in different context worldwide, are confirmed.