for several years before 2006, there was an ongoing debate on the possibilities of expanding the space for future library collections, as space in the current clementinum buildings was expected to reach its limit by 2010. on jan 10, 2006, the prague authorities decided to sell the city-owned property located in the area of letná near the prague center, to the national library. in spring 2006, an international architectural design competition for the new building was put up. the architect who won the competition was jan kaplický, but the decision was overruled, so the czech national library is still waiting for its final project.