Karen Blixens Plads comprises an area of approx. 22.400 m² and connects the University of Copenhagen South Campus and the Humanities and Law Library with the green areas of Amager Fælled. Once completed, the square will be one of the largest public spaces in Copenhagen, and, in addition to functioning as an urban meeting place for university students, it will include more than 2000 bicycle parking spots.
CN3 won the architectural competition, together with the architect firm, COBE. Through a gradual transition, the square links the university in the North with Amager Fælled in the South, and thereby functions both as a square and a park. To integrate the many bicycle parking spots in the hilly landscape, they are located in lowered bicycle beds as well as inside the hills.
The most prominent and complicated element of the project are the three bicycle hills. Each of the in situ concrete shells will span 40 meters and be supported by post-tensioned ring beams. In the competition phase, CN3 developed the concept and completed static calculations and descriptions of the design and production of the shells. In the design phase, CN3 completed preliminary- and detailed design for the concrete structures, which included 3D design of the concrete domes, drawings and design- and construction documents.