Permeable surfaces are materials that allow water to pass through them, reducing runoff and promoting groundwater recharge. These surfaces can include natural elements like soil and grass, as well as engineered products such as permeable pavers and porous asphalt. They help manage stormwater by absorbing rainwater, which can prevent flooding and erosion. Using permeable surfaces is beneficial for the environment as they support the natural water cycle. By allowing water to infiltrate the ground, they help maintain healthy ecosystems and reduce the burden on drainage systems. This approach is increasingly adopted in urban planning to create sustainable cities.