The new building of the National Library has been in preparation for almost three years

March 30, 2006 - The city council of the capital city preliminarily agreed to sell the library land in Letná. The parcels covering 12,000 square meters were to be acquired by the library for 31.5 million crowns, about half the market price.

May 16, 2006 - The National Library officially announced an anonymous international design competition for architects and architectural teams.

October 24 and 25, 2006 - An international jury selected eight designs from around four hundred submissions that proceeded to the second round of the competition. The deadline for this round was February 2, 2007.

March 2, 2007 - The results of the competition were announced. The winning design was declared to be the project by architect Jan Kaplický and his studio Future Systems. The eight-member jury unanimously selected the design.

March 8, 2007 - The Czech Chamber of Architects (ČKA) issued a statement claiming that the winning design violated the competition conditions by placing the space for storing the conservation fund underground. Representatives of the jury rejected the allegation of a violation of conditions. The ČKA then requested the International Union of Architects (UIA) to verify the regularity of the competition.

May 3, 2007 - President Václav Klaus expressed his opposition to the construction of a new National Library building in Letná according to Jan Kaplický's winning design.

May 15, 2007 - Kaplický presented the study of the new library in the Senate. He repeatedly countered criticisms that President Klaus had published a few days earlier regarding his building.

August 23, 2007 - The Office for the Protection of Economic Competition (ÚOHS) announced that it would not deal with the selection of the architect for the new National Library headquarters in Prague, as it was not within its jurisdiction. One of the unsuccessful studios, HŠH architects, had approached the office. Similarly, the ÚOHS decided in mid-October after a renewed submission.

October 11, 2007 - Lidové noviny reported that the project for the new National Library, designed by Kaplický, might be moved from Prague's Letná. The most significant part of the Prague city council, the ODS club, does not want the building in Letná and refuses to sell the land. Mayor Pavel Bém (ODS) also deemed the location of the building in Letná as unfortunate. However, the project author Kaplický stated that changing the site would require a complete redesign of the project.

October 14, 2007 - Kaplický first admitted that his proposal for the new National Library building might not be built in Prague at all. He invited Mayor Bém to a public television discussion about his library proposal.

October 15, 2007 - Director Ježek rejected the objections of Prague's ODS regarding the new library building, including the claims that the proposed building encroaches on land whose sale was not approved by the council. According to him, representatives of Prague had been involved in the approval of the library from the very beginning and were aware of and agreed with the changes regarding the land.

October 16, 2007 - Among other locations, Strahov emerged as the number one alternative site for the construction of the new National Library in Prague, according to a statement by city councilor for spatial development Martin Langmajer (ODS). Kaplický's design intended for Letná will likely not be transferable. Guidelines from the International Union of Architects (UIA) probably prohibit that, Langmajer also said.

- Prime Minister Mirek Topolánek (ODS) stated that the construction of the new National Library building is not among the current government's priorities, and it is therefore unclear whether the state wants to allocate money for it. Topolánek added that the ongoing discussions around the proposed building are therefore considered merely a "media, virtual reality."