The article traces the evolution of the research interests of Frans Dieleman, an academic who combined the development of analytical models with explorations of the policy implications of the changing structure of housing markets. During his long career as a professor of geography, he championed international cooperation in research and played a major role in disseminating the results of Dutch academic studies to an international audience. His own work was concentrated on the analysis of residential mobility. But much of that work also revealed his interest in applying scholarly insights to policy issues. Throughout his career he showed a deep commitment to improving the functioning of the social rented sector in the Dutch housing market. After reviewing some of Frans Dieleman’s major contributions to the understanding of the housing market, the article follows in his footsteps by analyzing the current use of social rented housing. In this way, this article provides an update on his field of interest based on recent survey data that underlines the validity of his insights.