Multi-objective optimization on sustainable retrofit of historical buildings using NSGA-II Algorithm: A case study of Suzhou

In order to promote the revitalization of historical buildings, it is essential to preserve their historical character while addressing issues such as poor thermal performance and low environmental comfort, making historical buildings more suitable for modern needs. Using historical buildings in Suzhou as a case study, the study explores comprehensive renovation strategies that simultaneously meet objectives such as historical preservation, energy consumption, cost reduction, and enhancement of environment comfort. The theoretical aspect of the research involves clarifying the potential for renovation of Suzhou's historical buildings from perspective of sustainable retrofit. It aims to uncover the intrinsic connections among historical preservation, sustainable goals, and retrofit strategies, thus proposing a set of strategies that cope with multiple objectives, providing a more holistic decision-making framework for historical building green renovation. Overall, this research is poised to offer comprehensive solutions for green renovation of historical buildings, thereby promoting environmental sustainability and maximizing the benefits of urban historical and cultural heritage preservation.