Over the last decades the population has grown, the industries evolved and the needs and dreams of the citizens changed. In consequence, the land use in the Canton of Zurich has been transformed on different scales and the built and unbuilt areas have been reshaped. Most of the territory in Zurich is situated on a convenient height above sea level for land use. Insofar, together with the ongoing process of population growth, the changes have mainly been in favor of settlement areas. Because the unproductive area consists mainly of water and their extent has hardly changed and, as well, the forest in Switzerland is strictly protected, the settlement areas expand mainly at the expense of cultivated land. This process isn’t ongoing in the same way near the city center as in areas with the character of a village or suburbia. As you go away from the center of Zurich, the functions of the built are getting more and more separated with less zones of mixed use and lower buildings in residential zones.