This thesis is about an Oncological Hospital in Podgorica, Montenegro. As the first hospital specializing in cancer treatment, it was crutial to provide a complete service to patients. The hospital is the only oncological center for the entire country. Taking in the consideration, the importantance of such a building, it was very important to be respectful to the environment at the same time. By paying attention to both built and natural environment. The hopsital is a part of a bigger Clinical Center located on the riverbanks. By focusing on innovative contruction methods such as modular building and circular economy in architecture, this project is an attempt to built a sustainable hospital.