During the construction of Adenauerplatz (U7) station, which was built in conjunction with an underpass, platforms were also provided for a planned U1 extension from Uhlandstraße to Theodor-Heuss-Platz.
Saat pembangunan stasiun Adenauerplatz (U7) station, yang dibangun bersamaan dengan perlintasan jalan bawah tanah, platform juga disediakan bagi rencana perpanjangan U1 dari Uhlandstraße menuju Theodor-Heuss-Platz.