Cities face increasing water shortages due to climate change, intensified by rapid urban growth and rising consumption. Addressing these challenges requires integrated urban planning strategies that combine land-use decisions with sustainable water resource management. This dual approach is essential for balancing water availability with growing urban demand, particularly under conditions of climatic uncertainty. Integrated frameworks promote resource efficiency, stakeholder participation, and equitable distribution—principles that are central to sustainable urban development. This research evaluates the impacts of climate change on water resources at the metropolitan scale, investigates how rapid urbanization interacts with escalating water demand and climate variability, and compares management strategies across three different socio-environmental contexts to identify best practices. We also examine the role of demographic dynamics, spatial distribution, and governance in shaping water availability and access. Our methodology integrates geospatial analysis, policy review, and stakeholder consultation. GIS tools are used to map urban expansion, water infrastructure, and vulnerability zones using multi-temporal satellite data and hydrological stress indicators. Planning regulations and legal frameworks are analyzed to evaluate institutional coherence and identify areas for policy alignment. Semi-structured interviews with planners, engineers, and community stakeholders in Marrakesh, Amman, and Bucharest provide insights into local adaptation strategies and governance practices. Building on this interdisciplinary approach, we propose a planning methodology to strengthen water resilience in metropolitan areas, applying findings from Marrakesh and Amman to inform future strategies for Bucharest. These cities face shared pressures from water scarcity, climate change, and complex socio-economic dynamics. This study aims to enhance the resilience of urban water systems; improve efficiency and sustainability in water use; provide equitable access across social groups; increase institutional capacity for adaptive governance; and provide urban growth models that integrate environmental, social, and economic priorities to proactively address future water challenges.