The City of Nicosia contains cultural heritage from different periods of history. Over time, due to user damage, illegal constructions, and abandonment, Nicosia has faced the danger of deterioration in its morphology and the loss of its original identity. With the recent strategic planning, the city of Nicosia has started to be revived. Within the scope of revitalization works, original or re-functional use projects are carried out on existing structures. Revitalization projects in historical cities should be implemented within the framework of sustainable development. In this study, the Arabahmet and Karamanzade regions of Nicosia were selected as the focus of the research. The research aims to assess revitalization works in selected zones within the framework of sustainable development. Three methodologies were followed in the research process: Theoretical, analytical, and practical approaches. As the first step in the theoretical approach, sustainable development was emphasized in historical cities and Nicosia City. Through an analytical approach, a current analysis of Nicosia city was made. In addition, in the practical approach, data highlighting the physical condition and architectural heritage of the regions were collected. In the practical assessment stage, data obtained within the scope of sustainable development and the revitalization works that can be applied in historical cities have been evaluated for the city of Nicosia. Analysis was made according to the data for the regions selected in line with the social, cultural, environmental, and economic criteria, which are the four pillars of sustainable development. In the last stage, the findings and discussion section, the direction of the revitalization works in the regions was assessed. Research reveals that the revitalization works carried out in the region are not fully addressed within the scope of sustainable development. The study reveals that it is essential for the sustainability of the conservation process of the local community.