Linienstraße is a two-kilometer long street that frames the inner part of the Platz to the north. Its original course corresponds to the former Berlin customs wall.
The following buildings are located on it:
- No. 23: Passives Haus
- No. 31: Emil-Haus
- No. 40: L40
- No. 227: Volksbühne
- Pappschachteln, southern parts of the Nazi-Bauten
- No. 16-21
- No. 225 - 226A
- No. 228-23