In this paper we will discuss the differences between multi- and single tenant preferences on the Dutch office market. The aim of this paper is to offer practical tools for developers and investors. We will focus on risk/ return profiles from the perspective of Dutch investors. With a case study on the Dutch office fund of AZL (73 assets and 230 tenants) and the ROZ/IPD benchmark enough data is available to make good portfolio analyses. Attention also will be made on the demand preferences. These preferences will be confronted with the fund portfolio. The results will be presented. The paper will conclude with remarks on a strategic, tactical and operational level.