Urban stormwater management is crucial for cities facing issues like urban sprawl and climate change. A study in Suzhou, China, used a Sponge City strategy with bio-retention cells, permeable pavements, grassed pitches, and stormwater gardens to reduce stormwater runoff. Results show that this approach can capture 91% of annual runoff and reduce suspended solids by 56%. This method is effective for managing stormwater in densely populated urban areas, improving water resilience and ecosystem services.