As the significance of sustainability in built heritage becomes more widely acknowledged, sustainable building performance and life cycle assessment are receiving more attention. In recent years, the academic community has been increasingly interested in sustainability, with the aim of achieving zero CO₂ emissions. Furthermore, the sustainability indicators play a key role in minimizing the environmental impact of the construction sector associated with the Life Cycle Assessment (LCA). This study aims to identify and evaluate key sustainability indicators and parameters, with emphasis on long-term environmental performance and life cycle outcomes in the context of built heritage. The scope of this research is to determine the structure of sustainability indicators through classification of three pillars of sustainability with assessment criteria and standards such as UN Sustainable Development Goals (SDGs) and Level(s). The study sheds light on sustainability indicator selection in the field of heritage protection, such as durability, energy efficiency, life cycle carbon emissions, and resource recycling. Key challenges in this subject are the lack of widely universal sustainability indicators adapted to the specific qualities of built heritage, since the variety of sustainability indicators may be different for each structure. By developing a comprehensive approach to evaluating sustainability indicators in the built heritage, the study contributes not only to drawing attention to the preservation of built heritage but also to promoting strategies that contribute to a more sustainable future. The findings will help examine policies and determine strategies that ensure the longevity and durability of built heritage while minimizing environmental impacts.