Circularity meter will assess reuse potential and circularity of materials within a building. The monitoring system indicates the potential material flows related to the circularity score. It monitors city building material flows and enables to identify the gap between the linear and circular economy in built environment, per region/city.

From each building project recorded on the knowledge platform, the total used, reused and reusable tonnages and respective CO2 emissions of materials are collected. As important environmental indicators, the on-site renewable energy production and energy use is also registered, and new green surfaces and planted trees. The data is processed and available in an overview below the monitoring map of City material flows.