This research addresses the growing urban challenges posed by rapid population growth and its consequences of urban sprawl, as well as climate change, which threaten urban green spaces (UGS). UGS are a crucial component for ensuring environmental sustainability and improving the quality of life within urban areas. This study aims to assess the multidimensional impact of green spaces by investigating their environmental, social, and economic benefits, highlighting the essential role of ecosystem services in maximizing these benefits. The study employs a descriptive-analytical approach to evaluate the effectiveness of green spaces in the built environment, utilizing various methodological pathways. The study concludes with several key findings, including: achieving a sustainable environment requires addressing the urban heat island effect, enhancing nature's capacity to absorb carbon, and protecting biodiversity. Adopting a comprehensive strategy focused on green networks and nature-based solutions is the path to achieving genuine and integrated environmental sustainability........... Keywords: ........Green spaces, environmental sustainability, quality of life, mental and physical health, smart and sustainable cities, urban public health