Istanbul is a Heritage city; from the famous Hagia Sophia to the Kirkcesme water system, it encompasses about 2500 years of historical significance. With the city’s contemporary sphere affected by water scarcity issues, it is crucial to interrogate the capacities of this heritage. Climate change does not discriminate heritage structures from others and poses the following questions: What is the contribution of these historical sites to the issues of climate change? Can historical water networks be critically conserved in a manner that brings about new forms of functionality? Considering water challenges across various transects of the city, the proposal challenges…