Urban water management is changing due to population growth and climate change. A new approach involves recycling wastewater and stormwater. A study looked at using biofiltration systems to treat greywater from sinks and showers. Different materials were tested for removing nitrogen, with cotton and rice hulls performing well. Plant species in the biofilters also affected pollutant removal. Overall, the biofilters effectively removed organics and suspended solids, meeting water quality standards. Nitrogen removal was high, while phosphorus removal varied. The study shows that biofiltration systems can be a reliable and efficient way to treat greywater in urban areas.