Debates amongst civil society organizations on the governance of multilateral development banks expressed concerns regarding institutional capacities to ensure quality-at-entry in private sector projects where developmental and social impacts must balance financial viability. This paper delves upon the African Development Bank's experience in this regard by exploring its ex-ante impact assessment and project appraisal tools. Overall, the introduction of an independent development-oriented project appraisal framework has increased the development focus of portfolio decisions along the lines drawn by institutional mandates. Empirical results suggest that development and risk concerns taken into account during project appraisal are independent from each other, and that no assumption should be made about one with respect to another. Findings also suggest that considerations regarding financial additionality matter when it comes to adding value in projects, as do concerns over benefits to households.