What if we find a way to intensify the historic inner city without losing the historical values? The number of dwellings in the city core of Utrecht is less when compared with the first expansions. The historical values are visible in the origin of the inner city. Without these buildings, the inner city will lose its appearance. We need to change the way we deal with the space in the inner cities. The building intensification is low in the inner cities. It has to change if we want to find new solutions for the housing shortage. This project will search for new possibilities to intensify the inner city without undermining the monumental (historical) values.