Stuttgart 21 main station to open in December 2031
- Location
- Stuttgart and surrounding region (Baden-Württemberg), incl. Filder plateau · 🇩🇪 Germany
- Project
- Stuttgart 21: New underground through station with approach lines (incl. Fildertunnel)
- Investment
- approx. EUR 14.5 billion (total cost forecast as of June 2026; originally planned at under EUR 5 billion)
- Status
- Under construction (phased commissioning starting December 2027)
The new underground through station (Tiefbahnhof) at Stuttgart Central Station and its approach lines, including the 9,468 m Fildertunnel to the Filder plateau, are under construction. Under Deutsche Bahn's revised phased schedule (June 2026), commissioning proceeds in steps: December 2027 initially via the historic Bonatz building, the new main station itself is due to open in December 2031, with full completion (including the Pfaffensteig tunnel/Gäubahn link) planned for December 2033. Total costs are now estimated at about EUR 14.5 billion. (Deutsche Bahn, Stuttgart–Ulm rail project, 26 June 2026)
Source: bahnprojekt-stuttgart-ulm.de ↗ · Archived copy ↗
Evidence: one source · archived copy saved · second source missing (two-source rule) · How well sourced is Eurotrack?
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