The Randstad in The Netherlands faces on the one hand structural vacancy in office buildings and on the other hand a growing housing shortage. Reuse strategies to decrease the vacancy rate of the office market have been researched extensively both inside and out- side The Netherlands. However, the challenges and opportunities for these reuse strategies specifically for tall office buildings have not been researched yet. The aim of this research is to find the difference in challenges to conversion of tall office buildings, focused on the Randstad in the Netherlands. This research will be carried out in two parts. The first part focuses on the past research, by carrying out a literature study consisting of challenges and solutions to conversion. The second part studies cases in the Randstad, comparing different cases to find the challenges to conversion of tall office buildings to housing. Concluding this research, there are not neccessarily new or other challenges in the transformation of tall buildings as opposed to the transformation of buildings that are not classified as tall. How- ever, some challenges, especially those on technical level, can have a higher impact on the transformation of tall buildings. This report contains the problem statement and context, together with the literature study, methodology, empirical findings and conclusion.