"This report has been developed in the context of the international co-operation projectAqua-Add (Deploying the added value of water in local and regional development), aiming atthe sharing of knowledge and experience between project partners as to better deploy thepotential of 'water' (economically, socially and environmentally) in urbanised landscapes andto improve the implementation of water measures in local and regional spatialdevelopment. Aqua-Add not only collects, analyses, disseminates and promotes the specificfunctions, services and values of green/blue spaces, but also develops and applies a DecisionSupport Tool (DST) that: i) demonstrates the (potential) social, environmental and economicimpacts of different water management scenarios, and ii) facilitates the planning processand better informed decision making across stakeholders.The objective of this report is twofold. First, the importance of stakeholder meetings in thedevelopment and application of the Sustainable Urbanizing Landscape Development (SULD;Roebeling et al., 2007, 2014) decision support tool is assessed. In particular, the extent towhich these meetings facilitated the identification, assessment and communication ofdifferent views and interests and, in turn, encouraged the effective engagement ofstakeholders in the participative design of (peri-) urban development plans. Second, theapplication of SULD to the other Aqua Cases (Bremerhaven DE; Copenhagen DK; DebrecenHU; Imperia IT; Lyon FR; Sofia BU) is presented and discussed, to assess the impact oflocation-specific green/blue space and infrastructure projects on the location of residentialdevelopment, housing quantity, residential development density, population density,population composition, household living space and real estate values. (,,,)