In recent years, interest in urban sustainability has grown, leading it to attain a central importance in the international contemporary debate on the future development of cities. Heritage, which has long been absent from the mainstream sustainable development debate, is nowadays recognized to have great potential in contributing to social, economic and environmental sustainability goals. Nevertheless, heritage as a key problem area of urban sustainable development is often limited to theoretical discourse. For this reason, several authors have stressed the urgency to develop a set of indicators to assess the role that heritage could play in urban sustainable development. On this basis, the present papers aims to fill this gap by providing a critical literature review of actual urban sustainability assessment methodologies, in order to contribute to the creation of a state-of-the-art framework of heritage-related indictors.