The objective of DP01 will be achieved through the active inclusion of diverse stakeholders, including the Ministry for the Ecological Transition and the Demographic Challenge, the University Rey Juan Carlos, and representatives from the Spanish Autonomous Communities who will identify green infrastructure elements in their regions and design plans and strategies based on the scientific inputs that will be provided. The DP will provide a methodological guide that includes a Tier-based approach for selecting indicators and methodologies based on the purpose of the assessment. It will cover a wide range of ecosystem services, including provisioning (food, raw materials, and surface water for drinking purposes), regulating (climate and air quality, pollination, water regulation, and erosion control), and cultural (recreational activities and aesthetic characteristics). Various methods will be employed to calculate service provision based on available data and resources, including direct, indirect, and modelling approaches.