This thesis investigates natural-based stormwater management in Parco La Mandria, focusing on mitigating the impact of recurring flood events, notably in 1994 and 2000, which were exacerbated by the Stura Di Lanzo and Ceronda rivers. The research adopts a comprehensive mixed-methods approach, integrating observational techniques, secondary data analysis, and Geographic Information System (GIS) mapping. Data were sourced from municipal records, a project conducted by a private company, and geoportal maps to ensure a robust and multi-faceted analysis. Furthermore, the evaluation of the sewer system's capacity was conducted using precipitation data, specifically Design Rainfall (DR) and Recorded Rainfall (RR). This assessment was crucial for creating efficient water pathways from the sewer system.