Abstract: In recent years, researchers have begun to propose methods to assess distributive justice under climate change and within adaptation policies. Literature calls for a systematic approach for incorporating distributive justice in water resources planning, and clear guidelines on how best to include such an approach in standard project development and decision-making frameworks. So far, there are inadequate illustrative examples of how this is done in practice, and little connection has been made to financial evaluation and decision metrics commonly used by stakeholders. While stakeholders and decision makers rely on the outcome of financial assessment methods such as Cost Benefit Analysis (CBA) to make informed decisions on a project’s economic ‘viability’ and justify cost investments, matters of equity are often neglected. Given the complexities of equitable resource planning in the presence of uncertainties like climate change, the study presents a step-by-step methodology to robust water project investment under climate change uncertainty while exploring benefit streams from equitable spatial distribution. Making this connection between equity in the distribution of water resources and their corresponding climate risks, and financial metrics used for decision making, would prove valuable to stakeholders in both academia and industry. Further, by providing decision makers with both equity and economic metrics upon which to base their decisions, confident decisions justifying cost investment and safeguarding equitable resource distribution can be made amid changing climate conditions.