Geodesign emerged as a new era for landscape architecture profession, which seeks to analyze landscapes in geographical context and works with different data sets in various layers to propose the most suitable land utilization and function. The notion of Geodesign and how it is implemented in the Turkish context will be presented in this work. Two case studies from the City of Istanbul will be studied wıth in the framework of Geodesign. Gains and constraints will be discussed regarding implementation of such techniques to a larger context. The present work can set an example of Geodesign based landscape design process not only for Turkish cases but all around the world.