 The project combines conventional drainage systems with WSUD measures at the streetscape and sub-catchment level, with the aim of attenuating and treating stormwater flows to protect receiving waters within the development.Primary treatment of the stormwater is carried out by grass swales and an underground gravel trench system, which collects, infiltrates and conveys road/roof runoff .The main boulevard acts as a bioretention system with an underground gravel filled trench to allow for infiltration and conveyance of stormwater.