text: Friedrichstraße was rebuilt in the 1990s, and at the time it was the city's largest construction project; work continues north of Friedrichstraße station. From 1992 until 1996, construction works took place for a six-building, $800 million, multi-use complex developed by Tishman Speyer, among others. The buildings have a city-imposed height limit of about 100 feet. A number of well-known architects contributed to the plans, including Jean Nouvel, who designed the Galeries Lafayette department store (Quartier 207); Pei Cobb Freed & Partners, who planned Quartier 206; and Oswald Mathias Ungers, who created Quartier 205. Philip Johnson created parts of the American Business Center at Checkpoint Charlie, a $751 million five-building complex of offices, shops and apartments developed by Ronald Lauder and Central European Media Enterprises. The redevelopment received mixed reviews.
  During the Cold War and division of Berlin, the Friedrichstraße underground station, despite being located in East Berlin, was utilized by two intersecting West Berlin S-Bahn lines and the West Berlin subway line U6. The station served as a transfer point for these lines, and trains stopped there, although all other stations on these lines in East Berlin were sealed-off ghost stations (), where trains passed through under guard without stopping. At Friedrichstraße station, West Berlin passengers could transfer from one platform to another but could not leave the station without the appropriate papers. The section of the station open to West Berlin lines was heavily guarded and was sealed off from the smaller part of it serving as a terminus of the East Berlin S-Bahn and as a station for long-distance trains.
  In 2020, a section of Friedrichstraße was closed off for motorized traffic during a five-month trial period with the intent to revitalize urban space.