The Climate Resillient Cities Toolbox can be used to explore which adaptation measures can better protect a neighborhood, neighborhood, site or street against flooding, drought and extreme heat. The main goal is to assist stakeholders (urban planners, drainage departments, municipalities, landscape designers, project developers, housing corporations, etc.) in the process of decision making and enabling a collaborative design process towards more resilient cities.​ 

In order to calibrate the tool for a certain climate region, a long timeseries of precipitation and evaporation is required. Other input includes land use, subsoil and groundwater characteristics and discharge capacities. The tool produces performance metrics on key climate indicators (water storage, groundwater recharge, water quality, …). CRC Tool is used for urban planning initiatives, therefore the time horizon is the next couple of decades. In order to have a closing water balance, the CRC Tool is limited to an area size of roughly 1 x 1 km.