The evolution of Barcelona's metropolitan public space network represents a dynamic and multifaceted transformation, unfolding across various temporal and spatial dimensions. This process, delineated by scholars such as Solà-Morales (2011) and Torres i Capell (1999), is characterized by a series of interventions spanning three distinct layers. Firstly, there's the rejuvenation of public spaces within local urban fabrics across diverse municipalities in the metropolitan area. Secondly, attention is drawn to initiatives revolving around blue-green infrastructures. Lastly, emphasis is placed on projects and interventions addressing metropolitan roads and mobility concerns. Through these concerted efforts, a cohesive metropolitan public space is emerging, playing a pivotal role in enhancing environmental sustainability while imbuing urban areas with vital qualities such as accessibility, vibrancy, and aesthetic appeal amidst the complexities of the metropolitan landscape.