New metro

The new metro – how Stockholm is expanding its network

Stockholm's metro is being extended along four new stretches. Here is what is being built, which stations are added and when they open – sourced solely from Region Stockholm's own figures.

Facts last checked against nyatunnelbanan.se on 1 November 2026.

The expansion at a glance

new stations
18new stations
of new track
30 kmof new track
boardings per day, projected
180,000boardings per day, projected
billion kronor, forecast at current price levels
99.8billion kronor, forecast at current price levels

Everything on this page comes from Region Stockholm's official site, nyatunnelbanan.se. Timelines for a project of this size can shift – always check against the source.

Latest from the build

The most recent milestones from Region Stockholm’s own news – every row links to the article.

  1. September 2026The review is complete: the final cost is assessed at 99.8 billion kronor and the openings are pushed back by one to two years – the yellow line is assessed to open in 2037.
  2. September 2026Track laying towards Barkarby has passed the double-track section of the stretch and continues in the tunnel bores towards Akalla.
  3. August 2026Work restarts at Sickla – concrete works and rock drilling through the autumn.
  4. August 2026The summer’s three closures completed as planned – new track and new plant between T-Centralen and Kungsträdgården.
  5. July 2026Barkarby’s first artwork is in place – art windows at the entrance beside Veddestabron.

Construction status right now

The bars show construction phases, not percentages – Region Stockholm publishes no percentage figures. A phase is marked done or in progress only when the source itself describes it that way.

Blue line to Barkarby

  • Preparatory works – DoneThe programme broke ground in Barkarby in March 2019. Source
  • Tunnel excavation – DoneThe tunnels between Akalla and Barkarby have been fully excavated since 2023. Source
  • Station construction – In progressBuilding and installation works are under way at both stations, above and below ground. The programme’s first escalators are in place at Barkarbystaden. Source
  • Track and railway systems – In progressThe first rail was laid at Barkarbystaden station in June 2026 and track laying continues along the full stretch. Source
Status by station
  • BarkarbystadenFit-out and installationsThe concrete works are done. The station and its entrances are now being completed and fitted out, with technical installations in the tunnels and above ground – and track laying in the tunnels has begun. Source
  • BarkarbyFit-out and installationsAll concrete works are done. The station and its two entrances in Veddesta are being completed and fitted out, with technical installations both above and below ground. Source

Green line to Arenastaden

  • Preparatory works – DoneBlasting for the stretch began at Hagastaden in the summer of 2020. Source
  • Tunnel excavation – DoneThe programme’s last tunnel blast was fired beneath Karolinska institutet in March 2026. The track tunnels towards Odenplan are connected to the green line. Source
  • Station construction – In progressConcrete works are intensifying and the stations are being built both below and above ground. Escalator installation has begun at Hagastaden. Source
  • Track and railway systems – Nothing reported yetThe stretch is still without track. The first track work, in the tunnels closest to Odenplan, is planned by Region Stockholm to start in 2027. Source
Status by station
  • HagastadenStructural worksThe entrances towards Karolinska University Hospital, Karolinska Institutet and Hagaplan are being built, along with the southern ticket hall at Torsplan. Concrete, ground and water works are under way in the ticket halls and tunnels. Source
  • Södra HagalundStructural worksBoth entrances are being built – at Solnavägen and Gelbgjutarevägen – and the concrete frames of the ticket halls, technical buildings and escalator shafts are being cast. Source
  • ArenastadenStructural worksThe northern and southern station entrances are being built at Dalvägen and Hagalundsgatan. The concrete works – the frame of the ticket halls and escalator shafts – are planned to continue into early 2027. Source

Blue line to Nacka and Söderort

  • Preparatory works – DoneConstruction was cleared to start in 2019, with the first blasts on Södermalm and in Nacka in spring 2020. Source
  • Tunnel excavation – DoneAll track tunnels are excavated – the last blast was fired in January 2025 after 9,838 rounds. Source
  • Station construction – In progressConcrete and ground works are under way in the tunnels, with ticket halls and entrances being built above ground. The first of 165 lifts has been installed at Sickla. Source
  • Track and railway systems – In progressTrack laying has begun – starting in the tunnels at Kungsträdgården and the Högdalen depot. Source
Status by station
  • SofiaStructural worksThe station is being built in Stigbergsparken by Folkungagatan; blasting in the park finished in April 2025. The gap between the rock and the lift module is now being sealed, with casting at the lift shaft, and formwork and reinforcement work is expected to continue through the year. Source
  • Hammarby kanalStructural worksThe southern entrance is being built in Hammarby Sjöstad, where concrete work above ground in Lumaparken is casting the frame of the ticket hall and other station spaces. At the northern entrance in Norra Hammarbyhamnen the blasting for the escalator shaft and ticket hall is finished; the excavated rock is being removed until early 2027, after which the concrete work begins. Source
  • SicklaStructural worksConcrete work is under way above ground – reinforcement, formwork and casting of the frame of the ticket hall and other station spaces. In the tunnels, rock drilling, installation and concrete works are under way. Source
  • JärlaStructural worksA ticket hall and two entrances are being built. Installation and construction works are under way in the tunnels and at the ticket hall, alongside concrete, ground and water works. Source
  • NackaStructural worksConcrete work is under way above ground at the future entrances at Vikdalsbron, Stadsparken and Jarlaberg – the frames of the ticket halls, escalator and lift shafts are being cast and precast elements fitted. In the tunnels, rock drilling, installation and concrete works are under way. Source
  • GullmarsplanStructural worksFive high-speed lifts are being built in the ticket hall – the lift shafts are fully excavated and are now being lined with concrete elements. At Mårtensdal a new entrance is being built inside an office building. Source
  • SlakthusområdetExcavation under wayThe station and its two entrances are being built. Above-ground blasting is currently under way at the southern entrance – the tunnels north and south are fully excavated. Source

Yellow line to Älvsjö

  • Preparatory works – In progressPreparatory works are under way in Älvsjö, Årsta and Liljeholmen among other areas. The environmental permit was granted in March 2026. Source
  • Tunnel excavation – Nothing reported yetNo tunnel blasting has begun. At Södertäljevägen, where the work tunnel to Liljeholmen station is being built, blasting starts in week 45 of 2026 according to Region Stockholm. At Årsta partihallar, blasting of the work tunnel to Årstaberg station starts around the turn of 2026/2027, and at Lindhagensplan Region Stockholm expects to start drilling and blasting the work tunnel in spring 2027. The track tunnels will then be bored by tunnel boring machines. Source
  • Station construction – Nothing reported yet
  • Track and railway systems – Nothing reported yet
Status by station
  • FridhemsplanPreparatory worksPreparatory works are under way at Lindhagensplan: the sheet-pile wall at the future tunnel mouth is installed and is being anchored into the rock, and utility works are under way in the roundabout. The preparatory works are expected to be fully complete in early 2027, and Region Stockholm expects to start drilling and blasting the work tunnel down to the station in spring 2027. Source
  • LiljeholmenPreparatory worksWork in Trekantsparken starts in stages during 2026 and 2027, with a new entrance to today’s ticket hall and a lift shaft down to the yellow line platform; the access road through the park is planned to be finished in early 2027. The work tunnel is being built at Södertäljevägen, in a work area taken over from Stockholm Vatten och Avfall. Blasting of the work tunnel starts in week 45 of 2026, at an average of 3–5 blasts a week, and the whole tunnel is estimated to take about 1.5 years to blast out. Source
  • ÅrstabergPreparatory worksAt Årsta partihallar, a work site taken into use in 2026, a sheet-pile wall is being built this autumn for a work tunnel to the station. Blasting of the work tunnel starts around the turn of 2026/2027 and is estimated to take about 1.5 years; the station space and lift shaft are blasted out after that. The entrance will be at Svärdlångsplan, next to the commuter-rail station and the bus square. Source
  • ÅrstafältetPreparatory worksA tight ring of secant piles is being built around the future lift shaft, work expected to continue until spring 2027. The station is built without a work tunnel: blasting is planned to start at the bottom of the shaft in early 2028, and the lift shaft and station space are estimated to take about 2.5 years to blast out. Source
  • ÖstbergahöjdenPreparatory worksPreparatory works are under way at Östbergahöjden, with utility works along Östbergabackarna. The top layer of soil is being dug away and from week 41 of 2026 the rock is cleaned with high-pressure air for four to five weeks. This winter, work is planned to start on a shaft down into the rock, used to move staff, machines and excavated rock throughout the build; a noise-damping building will be placed above it. Source
  • ÄlvsjöPreparatory worksPreparatory works are under way. At Älvsjö sports ground an access road is being built down to the rock and the future work tunnel: above-ground blasting is expected to start in week 46 of 2026, with 2–3 blasts a day until the end of January 2027, after which blasting continues for the work tunnel. In the industrial area the start pit where the tunnel boring machines will be assembled is being prepared – the depot is then built on the same site. Source

The four extensions

In September 2026 Region Stockholm published a review of every metro project with new assessed opening years. These are assessments – Region Stockholm states that no new financing and no new timetables have been decided yet.

Stations already in service today link through to their live departures here.

Blue line to Barkarby

Akalla–Barkarby

The blue line is extended four kilometres beyond Akalla with two new stations. Barkarby station is built next to the Barkarby commuter rail station, tying the metro into the commuter trains.

New stations: Barkarbystaden, Barkarby

The stations
  • BarkarbystadenPlatform depth 30–35 m · 24 min to T-Centralen, no transfers · 2 entrances – along Barkarbyvägen, at Sveatorget and Flygfältsplatsen
  • BarkarbyPlatform depth 30 m · 26 min to T-Centralen, no transfers · 2 entrances – both on the Veddesta side of the E18A hub at the commuter rail station, with connections to commuter, regional and long-distance trains and a new bus terminal.

Assessed opening, according to Region Stockholm: 2028

Read more at Region Stockholm

Green line to Arenastaden

Odenplan–Arenastaden

The green line is extended from Odenplan to Arenastaden with three new stations in Stockholm and Solna.

New stations: Hagastaden, Södra Hagalund, Arenastaden

The stations
  • HagastadenPlatform depth 20 m · 7 min to T-Centralen, no transfers · 2 entrances – at Norra Stationsgatan and towards Karolinska University HospitalOne of the entrances is built inside Karolinska University Hospital.
  • Södra HagalundPlatform depth 45 m · 9 min to T-Centralen, no transfers · 2 entrances – at Solnavägen and Gelbgjutarevägen
  • ArenastadenPlatform depth 35 m · 11 min to T-Centralen, no transfers · 2 entrances – at Dalvägen and HagalundsgatanThe green line’s new terminus – the southern entrance is built near the Tvärbanan Solna stop, with connections to commuter trains and buses.

Assessed opening, according to Region Stockholm: 2029

Read more at Region Stockholm

Blue line to Nacka and Söderort

Kungsträdgården–Nacka och Söderort

The blue line is extended from Kungsträdgården and splits at the new Sofia station on Södermalm: one branch east to Nacka and one south via Gullmarsplan. Gullmarsplan gains a new platform for the blue line, and a new station is built in the middle of the new Slakthusområdet district.

New stations: Sofia, Hammarby kanal, Sickla, Järla, Nacka, Gullmarsplan, Slakthusområdet

The stations
  • SofiaPlatform depth about 100 m · 4 min to T-Centralen, no transfers · 1 entrance – in StigbergsparkenStockholm’s deepest station – eight express lifts carry passengers to the platform in about 30 seconds.
  • Hammarby kanalPlatform depth 40 m · 6 min to T-Centralen, no transfers · 2 entrances – Vintertullen on Södermalm and Luma in Hammarby sjöstadStockholm’s first station beneath water, with a connection to the tvärbana at Lumaparken.
  • SicklaPlatform depth 35 m · 8 min to T-Centralen, no transfers · 4 entrances – including in Sickla Central and the Sickla köpkvarter shopping districtFour transport modes meet: metro, tvärbana, Saltsjöbanan and bus. A walkway beneath Värmdövägen can be used without an SL ticket.
  • JärlaPlatform depth 25 m · 10 min to T-Centralen, no transfers · 2 entrances – towards Birkavägen and a new square beside VärmdövägenThe station sits in the ground floor of a new residential building, with connections to buses and the Saltsjöbanan.
  • NackaPlatform depth 40 m · 12 min to T-Centralen, no transfers · 4 entrances – three at Nacka Forum and one in JarlabergThe blue line’s new terminus – home to Sweden’s longest escalator, at 99 metres.
  • GullmarsplanPlatform depth 70 m · 6 min to T-Centralen, no transfers · 2 entrances – Gullmarsplan and a new entrance at MårtensdalA new blue-line platform beneath today’s green line – five express lifts take the place of escalators.
  • SlakthusområdetPlatform depth 40 m · 8 min to T-Centralen, no transfers · 2 entrances – Norra entrétorget and Centrala parken, with three entrancesThe station replaces Globen and Enskede gård when it opens.

Assessed opening, according to Region Stockholm: 2032

Read more at Region Stockholm

Yellow line to Älvsjö

Fridhemsplan–Älvsjö

An entirely new metro line between Fridhemsplan and Älvsjö with six stations. Fridhemsplan gains a platform beneath the blue and green lines, and Liljeholmen one beneath the red line.

New stations: Fridhemsplan, Liljeholmen, Årstaberg, Årstafältet, Östbergahöjden, Älvsjö

The stations
  • FridhemsplanPlatform depth 55 m · 10 min to Älvsjö, no transfers · 4 entrances – the same entrances as today: Drottningholmsvägen, Mariebergsgatan, Fleminggatan and S:t EriksgatanThe yellow line’s platform is built beneath the blue and green lines – making Fridhemsplan an even more important interchange.
  • LiljeholmenPlatform depth 31 m · 3 min to Fridhemsplan, no transfers · 2 entrances – a new entrance at Trekantsparken; the Liljeholmstorget entrance remainsBuilt beneath the existing red line, with connections between the yellow line, red line, tvärbana and buses.
  • ÅrstabergPlatform depth 41 m · 5 min to Fridhemsplan, no transfers · 1 entrance – east of the bus square at SvärdslångsplanAn interchange between metro, commuter rail, tvärbana and buses.
  • ÅrstafältetPlatform depth 48 m · 6.5 min to Fridhemsplan, no transfers · 1 entrance – in the middle of the new district, with six express lifts down to the platform
  • ÖstbergahöjdenPlatform depth 56 m · 8 min to Fridhemsplan, no transfers · 1 entrance – at Östbergabackarna, about 100 metres from Östberga centrum
  • ÄlvsjöPlatform depth 38 m · 10 min to Fridhemsplan, no transfers · 1 entrance – a free-standing building between Älvsjö centrum and StockholmsmässanThe yellow line’s southern terminus, with connections to commuter rail and buses.

Assessed opening, according to Region Stockholm: 2037

Read more at Region Stockholm

Timeline and milestones

A selection of construction milestones, dated by Region Stockholm’s own news items. Every row links to its source.

2019

  1. March 2019Construction starts on the whole programme – first blast in Barkarby. Source

2020

  1. April 2020First blast on Södermalm for the Nacka stretch. Source
  2. July 2020First blast at Hagastaden. Source

2021

  1. October 2021First blast at Sockenplan – work begins on the Söderort branch. Source

2022

  1. April 2022The programme’s first tunnel breakthrough, between Akalla and Barkarbystaden. Source

2023

  1. May 2023The tunnels at Akalla are fully excavated. Source
  2. November 2023Decision: eight kilometres of yellow-line track tunnel will be bored by tunnel boring machines. Source

2024

  1. January 2024New timetable after the contractor change: Barkarby finished December 2027. Source
  2. April 2024Blasting completed beneath the Hammarby canal. Source
  3. October 2024Breakthrough at Dalvägen in Arenastaden. Source

2025

  1. January 2025The whole blue line towards Nacka and Söderort is fully excavated after 9,838 blasts. Source
  2. August 2025The first of the programme’s 165 lifts is installed at Sickla. Source
  3. August 2025Sofia’s 103-metre lift shaft is fully cast. Source
  4. October 2025First dig for the yellow line at Älvsjö IP – 75 years to the day after the metro opened. Source
  5. October 2025The programme’s first escalators are in place at Barkarbystaden. Source
  6. December 2025The first rail is in place underground, at Kungsträdgården. Source

2026

  1. March 2026Preparatory works start at Liljeholmen. Source
  2. March 2026The last tunnel blast is fired beneath Karolinska institutet – 63.4 kilometres of tunnels created since 2019. Source
  3. March 2026Environmental permit granted for the yellow line. Source
  4. May 2026Track laying begins – starting at Kungsträdgården and the Högdalen depot. Source
  5. May 2026The programme’s largest procurement ever: tunnel boring machines and four station caverns for the yellow line. Source
  6. June 2026The first rail is laid at Barkarbystaden station. Source
  7. July 2026Barkarby’s first artwork is in place – art windows at the entrance beside Veddestabron. Source
  8. August 2026The summer’s three closures completed as planned – new track and new plant between T-Centralen and Kungsträdgården. Source
  9. August 2026Work restarts at Sickla – concrete works and rock drilling through the autumn. Source
  10. September 2026Track laying towards Barkarby has passed the double-track section of the stretch and continues in the tunnel bores towards Akalla. Source
  11. September 2026The review is complete: the final cost is assessed at 99.8 billion kronor and the openings are pushed back by one to two years – the yellow line is assessed to open in 2037. Source

Coming up

  1. Planned: week 45 of 2026Blasting of the work tunnel at Södertäljevägen, for the yellow line’s Liljeholmen station, begins. Source
  2. Planned: turn of 2026/2027Blasting of the work tunnel at Årsta partihallar, for the yellow line’s Årstaberg station, begins. Source
  3. Planned: winter 2026/2027Work on the shaft down into the rock at Östbergahöjden is planned to begin. Source
  4. Planned: December 2026The new bus terminal at Barkarby is planned to open. Source
  5. Planned: 2027The first track work on the green line to Arenastaden, in the tunnels closest to Odenplan, is planned to begin. Source
  6. Planned: spring 2027Drilling and blasting of the work tunnel at Lindhagensplan, down towards Fridhemsplan station, is planned to begin. Source
  7. Planned: 2028Assessed opening of the blue line to Barkarby – a year later than previously decided. Source
  8. Planned: autumn 2029The tunnel boring machines arrive in Stockholm and are assembled at Älvsjö. Source
  9. Planned: 2029Assessed opening of the green line to Arenastaden – a year later than previously decided. Source
  10. Planned: 2031The first tunnel boring machine is estimated to reach the southern parts of Liljeholmen. Source
  11. Planned: 2032Assessed opening of the blue line to Nacka and Söderort – two years later than previously decided. Source
  12. Planned: 2037Assessed opening of the yellow line to Älvsjö. Source

What changes for today’s passengers

Part of the expansion changes journeys people already make today: the Hagsätra branch changes line.

  • The southern branch of the blue line runs from the new Sofia station south via Gullmarsplan and on to Sockenplan, where it joins the Hagsätra branch.
  • The Hagsätra branch therefore becomes part of the blue line instead of the green line.
  • Region Stockholm gives the reason: the stretch between T-Centralen and Slussen is heavily loaded today, and connecting one of the green lines to the blue line instead frees up capacity.

See line 19 as it runs today

Read more at Region Stockholm

Official source

The new metro is built by Region Stockholm's administration for metro expansion, in a partnership between the state, Region Stockholm, Järfälla, Nacka, Solna and the City of Stockholm. Their site carries detailed information on each stretch, the construction works and how neighbours are affected.

Read more at Region Stockholm

Explore the network as it is today

Cookies & analytics

We would like to use Google Analytics and our own anonymous usage statistics to understand how the app is used and make it better. No data is used for advertising. Nothing is stored until you accept.

You can change your choice at any time in Settings. Privacy policy