Heritage buildings are an important part of human achievement and city memory, as well as being a cornerstone of the cultural heritage of societies. The City of Baghdad has a rich legacy of heritage buildings that represent various historical periods, which the city has gone through and reflect a place identity and its local communities. These buildings have suffered from cognitive negligence, their importance and poor maintenance during the past decades, as well as the demolitions of many parts of them and their exposure to various types of deterioration, especially during and after the conflicts and crises that the city of Baghdad has gone through. This research explains the role of social sustainability in reviving the heritage of the existing buildings in the City of Baghdad, in particular after crises times. It also discusses the role of social sustainability, based on activities, in revitalising the heritage of buildings by generating new human activities in and around these buildings; this can improve the communication between the social groups and influence their spatial distribution and interaction around the buildings and thus explore buildings’ identity. The aim of this study is to identify appropriate strategies of social sustainability relied on creative new human activities achieved the revival and restoration local cultural identities of the buildings’ heritage. Methods were included the study case approach, Lynch building in Al-Rashid Street, and applying a set of new creative human activities to meet the revitalization. Findings have concluded a clear development for urban development, based on sustainable social patterns of human activities, that enhance the physical, spatial, and cultural identities of buildings’ heritage.