Urban biodiversity is significant for city planning as it promotes ecological health and enhances the quality of life for residents. Biodiverse urban areas can improve air quality, reduce heat islands, and support mental well-being by providing green spaces. Additionally, urban biodiversity contributes to pollination, pest control, and nutrient cycling, which are essential for sustainable city ecosystems. Incorporating biodiversity considerations into planning can lead to resilient cities capable of adapting to climate change while fostering a sense of community and connection to nature.