In this study, different methods were tested to tackle water issues in a small urban area. The aim was to undo some of the problems caused by cities spreading out. They tried various techniques like special pavements and green roofs in a construction area and used a computer model to see the changes. The results showed that as the city grew, water flow and peak rates went up a lot. But by adding these green solutions, the water flow returned a bit closer to how it was before the urban development. The best at reducing these water issues were bioretention cells, which performed better than other methods tested. This suggests that these green technologies can help protect nature in urban areas.