Urban flooding events which are often caused by a lack of capacity of the urban collecting system, can be a risk to human life. The CENTAUR project is developing an innovative, cost effective, local and autonomous sewer flow control system to reduce urban flood risk. The CENTAUR system consists of a flow control device controlled by a Fuzzy Logic algorithm to allow upstream storage capacity to be used to reduce downstream flood risk. Results will be presented from a modelling study of this system, based on the sewer network in the city of Coimbra, Portugal. These results show the ability of the system to decrease water level in a critical location, without increasing flood risk upstream. CENTAUR is an Innovation action funded by European Union’s (EU) Horizon 2020 research and innovation programme under grant agreement No 641931.