Region Stockholm has announced that the costs of extending the Stockholm metro have risen sharply. The project includes the Blue Line branch to Nacka. In a joint statement, Järfälla, Nacka, Solna, the City of Stockholm and the state, through the Stockholm and Sweden negotiations, said the new cost increases need to be examined thoroughly. For Nacka, the metro is tied to its plans for new housing.
Costs above the agreed budget
According to the partners, the new cost increases lie above the budget that the state and the municipalities have agreed to finance. The increase comes even though the state and the municipalities agreed as recently as December 2025 to contribute more money. That agreement was based on cost calculations from Region Stockholm. The parties are now analysing the situation and what lies behind the higher costs.
The Blue Line to Nacka
The Blue Line is being extended from Kungsträdgården to Nacka and Söderort. It gets two branches from station Sofia on Södermalm: one runs south via Gullmarsplan and one runs east to Nacka. On the Nacka branch, the stations Hammarby kanal, Sickla, Järla and the terminus Nacka are being built. Planned travel times to T-Centralen:
- Hammarby kanal: 6 minutes
- Sickla: 8 minutes
- Järla: 10 minutes
- Nacka: 12 minutes
The platform at station Nacka is to lie about 40 metres below road 222, level with Nacka Forum. Sickla is to become a hub for changing between metro, buses, Saltsjöbanan and Tvärbanan. The expected start of service is 2032, two years later than previously decided.
Why it matters for housing
A main purpose of the new metro is to enable new housing. Urban development and housing construction are under way in parallel in the areas that will get the metro. Entrance and station locations were worked out together with the City of Stockholm and Nacka Municipality to support urban development and planned housing. The extension is also meant to relieve Slussen and increase public transport capacity between northern and southern Stockholm.