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Brussels Governance Monitor

Metro 3: project frozen for 10 years, replaced by tram

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The February 2026 agreement suspends the Metro 3 project as conceived (Albert — Bordet extension, ~5.2 Bn EUR) for 10 years. The Nord–Bordet section is frozen and replaced by a tram completing the loop of the existing network.

Estimated budget

~5.2 billion EUR (suspended project)

Key figures

~5.2Bn EUR

Estimated total budget (original project)

10years

Duration of freeze

4.76Bn EUR

Total cost (Court of Audit)

+477%

Budget overrun

Alerts

  • Special Metro 3 committee: adoption of 22 recommendations (governance, budget control, protection of local residents), plenary vote scheduled for 17 July 20269 July 2026
  • Final hearing of the special Metro 3 inquiry committee on 18 June 2026 (Minister for Mobility and State Secretary for Urban Planning) — conclusions phase to follow18 June 2026
  • North Station: Metro 3 tunnel project compromised (special commission hearing, 23 Apr. 2026)23 April 2026
  • DPR: Metro 3 frozen for 10 years, replaced by tram13 February 2026
  • Palais du Midi controversy: ARAU denounces 'urban planning nonsense'13 February 2026

Stakeholders

Société des Transports Intercommunaux de Bruxelles (STIB)Beliris (federal cooperation agreement)Brussels-Capital RegionFederal Government

Special committee conclusions: 22 recommendations (9 July 2026)

After 8 months of work and more than 50 hearings, the Brussels Parliament's special committee on the Metro 3 governance failures, chaired by Anne-Charlotte d'Ursel (MR), finalised and adopted its findings and 22 recommendations on Thursday 9 July 2026.

The recommendations are grouped into 6 axes: governance, quality of studies and environmental impact, management of technical risks and budgetary sustainability, legal framework and financing, local impact, and prerequisites before completing the Metro 3 project. Key recommendations include a single, accountable, decision-making governance structure within one administration for any major regional infrastructure project, with an identified project director accountable before the government and the Brussels Parliament (a direct response to the fragmented governance blamed for the Metro 3 cost overruns); a budgetary alert mechanism to flag cost overruns early; a guarantee of independent technical and impact studies, protected from political or administrative pressure; mandatory complete geotechnical and heritage studies before the start of any construction site; a single window for local stakeholders, compensation mechanisms defined before works begin, and a genuine site-management plan; and strengthened transparency and accountability via mandatory reporting with an alarm-bell mechanism.

The report is still to be put to a vote in plenary session of the Brussels Parliament on 17 July 2026.

Sources: RTBF (9 July 2026), RTBF (9 July 2026), BX1, La Libre (9 July 2026), La DH (9 July 2026). Confidence: official (the parliamentary committee is itself an institutional source, and the name of the committee chair is cited consistently across multiple media outlets).

Hearings of former political officials (11 June 2026)

On 11 June 2026, the special Metro 3 committee heard three former members of the regional executive: the former Minister-President (in office from 2013 to 2026, already heard on 9 December 2025), the former Minister for Finance and the former State Secretary for Urban Planning (2019-2023).

  • The former Minister-President defended the choices made since 2013: 'Metro 3 is a necessity and an investment in the future of a city in full development.' In his view, inflation, the heterogeneity of the subsoil and the absence of reasonable bids do not amount to negligence but to risks inherent to major infrastructure projects.
  • The two other former officials did not contradict this reading of the project's history, but stressed that its future — beyond the current suspension of the northern section — will in their view require some form of collaboration with the private sector. The former Minister-President had declared himself opposed to this in December, fearing higher fares for passengers.

Final scheduled hearing: Thursday 18 June 2026 at 2 p.m., with the current Minister for Mobility and State Secretary for Urban Planning. The committee, created in November 2025 after the critical report of the Court of Audit, will then enter its conclusions phase.

Source: BRUZZ Mobility (11 June 2026). Confidence: unconfirmed (press report).

North Station: construction site compromised (23 April 2026 hearing)

On Thursday 23 April 2026, the Brussels Parliament's Special Metro 3 Commission held its 18th hearing. Henri Ernst, CEO of construction company Galère SRL (part of the SM Progrès consortium appointed by Beliris to excavate the underground cavity beneath the North Station), stated: "We assume there is little chance the project [under the North Station] will proceed."

Findings from the hearing:

  • Beliris recently asked SM Progrès to complete only the surface urban redesign around the North Station (rue du Progrès, rue d'Aerschot) — no longer the underground cavity
  • Unforeseen ground conditions (water ingress) forced the abandonment of the original construction method
  • A new technique called V.E.R.T. would be required, estimated at EUR 75.119 million on top of the EUR 22.56 million already spent — with no guarantee of feasibility
  • The site has been idle for several years; SM Progrès teams have left

Consequences:

  • The northern branch of Metro 3 (which was to extend via a tunnel connected to the North Station cavity toward Bordet) is now compromised beyond even the 10-year freeze set in the DPR
  • Surface road works can resume
  • The case raises questions about the decision chain Beliris ↔ Region ↔ Federal government on the future of the northern route

Sources: BRUZZ Stedenbouw, La DH Bruxelles (23 April 2026).

Government agreement: what changes

The agreement of 12 February 2026 seals the most structural decision for Brussels public transport in decades:

  • Metro 3 frozen for 10 years — the project as conceived (Albert — Bordet extension, ~5.2 billion EUR) is suspended
  • Replaced by a tram completing the loop of the existing network
  • Ongoing construction sites (Constitution, Palais du Midi) are continued
  • Tram 15 (Gare du Nord — Tour & Taxis) is maintained

This decision redirects billions of euros in investment from underground metro to surface tramway.

Palais du Midi controversy

The continuation of tunnel works beneath the Palais du Midi (Zuidpaleis) has triggered a sharp controversy. The building is to be largely demolished — only the facades will be preserved — to allow construction of the tram tunnel.

The ARAU association (Atelier de Recherche et d'Action Urbaines) called the decision "urban planning and political nonsense", arguing that the tunnel merely "duplicates the existing tram service".

The Council of State had suspended the demolition permit in December 2025. An engineering report from 10 February 2026 revealed that 90% of the building's floor zones do not meet current load-bearing standards, adding a structural argument to the case.

Permit issued on 17 June 2026. The Region finally issued the planning permit authorising the partial dismantling of the Palais du Midi, lifting the main administrative obstacle to digging the missing-link tunnel. The permit comes with strengthened heritage safeguards: conservation and restoration of the historic façades, preservation of the original joinery and ironwork, retention of the north-wing roofs and enhancement of the Passage du Travail. The ARAU immediately announced it intends to explore every avenue to prevent the demolition, and traders are calling for a taskforce. For the record, the dismantling had already been suspended in 2023 by the Council of State following appeals by associations.

Sources: La Libre, BRUZZ (17 June 2026).

Inherited context

The Metro 3 project aimed to extend Brussels' north-south metro line, connecting Albert station (Forest) to Bordet (Evere) via the city centre. It was the largest public transport infrastructure project in the Brussels-Capital Region, co-funded by the Region and the federal government through the Beliris cooperation agreement.

The project's cost had ballooned: initial estimates were under 1 billion EUR, later revised to 3.2 billion, before the Court of Audit put the total cost at 4.76 billion EUR — a +477% overrun. The report, which highlighted a 15-year delay and concluded that the project's financial sustainability was "seriously compromised", directly led the negotiators to freeze the project.

What was blocked (June 2024 — February 2026)

In the absence of a fully empowered regional government, major budgetary decisions were frozen:

  • New multi-year budget allocations
  • Arbitrations on cost overruns related to inflation
  • Renegotiation of the terms of the Beliris agreement

Preparatory works continued in part, but phases requiring new financial commitments were blocked.

Progress on the southern section (March 2026)

On 11 March 2026, STIB announced that the structural works of the Toots Thielemans pre-metro station are completed. The structural shell beneath Stalingrad Avenue is finished, but fit-out works (tiling, wall cladding, escalators, fare gates) remain to be carried out.

Immediate consequences:

  • The redevelopment of Stalingrad Avenue can begin in autumn 2026 (pedestrian promenades on both sides, permit obtained by the City of Brussels)
  • The Toots Thielemans station, paired with the Lemonnier station, will enable the doubling of tracks in the pre-metro tunnel between Gare du Midi and Bourse, increasing service frequency

Missing link (Palais du Midi):

The civil engineering works for the remaining 120 metres of tunnel beneath the Palais du Midi will take a further four years. They could begin in 2027, subject to the rejection of the heritage listing application and the granting of a planning permit for the interior demolition. The building, dating from the 1970s, contains asbestos and does not meet current load-bearing standards (engineering report of 10 February 2026: 90% of floor zones non-compliant).

Sources: VRT NWS, BRUZZ, La Libre (11 March 2026).

Parliamentary hearing: SM Toots consortium (12 March 2026)

On 12 March 2026, engineers from the SM Toots consortium were heard by the Brussels Parliament's special Metro 3 commission. Three officials testified: Geert Versweyveld and Gaëtan Lamaille (management committee) and François-David Jonard (project director).

Key findings:

  • The Palais du Midi should have been evacuated much earlier to enable thorough soil investigations. The cellars were partially inaccessible, preventing a full assessment of the underground conditions
  • The jet grouting technique (water-cement injection to form watertight walls) proved unsuitable: the soil contained stone deposits and unexpected heterogeneity
  • The clay layer was found to be much deeper than anticipated in some locations, requiring piles of 24 metres rather than the initially calculated depth
  • The contract was "build only" (execution only): the consortium had to carry out predetermined plans without having participated in the design phase

The consortium defends its choices as "logical" given the available data, but acknowledges that soil information was insufficient at the start of works.

Source: BRUZZ (12 March 2026).

Parliamentary hearing: Mayor of Brussels-City (24 March 2026)

On 24 March 2026, the Mayor of Brussels-City was heard by the Metro 3 inquiry commission of the Brussels Parliament. He joins the list of political leaders already heard as part of this parliamentary inquiry: former regional minister-presidents, former federal ministers and former mayors.

The commission continues its investigation into the financial overruns (+477%, from under 1 billion to 4.76 billion EUR according to the Court of Audit), the inconsistent decision-making process, opaque management and uncertain viability of the project.

During the hearing, the Mayor also announced a partial reopening of the Palais du Midi (Zuidpaleis) for basketball matches from June 2026, despite ongoing tunnel works beneath the building.

Tram works on Stalingrad Avenue continue in preparation for the preliminary operation of the southern section. The missing link (Palais du Midi) — 120 metres of remaining tunnel, four years of civil engineering — could see works begin in 2027, subject to rejection of the heritage listing application.

Sources: DH (23 March 2026), BX1 (24 March 2026).

Issues to monitor

  • Conversion: the future of infrastructure already built or under construction for Metro 3 (tunnel, stations) must be defined
  • Replacement tram: the route, timeline and budget of the replacement tram are not yet known
  • Beliris: the impact on the federal cooperation agreement must be negotiated between the Region and the federal government
  • Northern mobility: the northern Brussels municipalities (Schaerbeek, Evere) that were expecting the metro will need to be served differently
  • Budget: the savings from Metro 3 could be reallocated to other regional priorities

Frequently asked questions

What is the Metro 3 project in Brussels ?

Metro 3 is a project to extend the Brussels north-south metro line, from the south of the city to the north via the centre. Designed as the Region's largest public transport project, it combines new underground stations and a long tunnel. In its full extension form, the project is now suspended : a tram is to complete the loop of the existing network instead.

Who runs the Metro 3 project ?

Metro 3 rests on a multi-level governance structure. The Brussels-Capital Region sets the direction and holds the regional project ownership through STIB, the public transport operator. Beliris, the cooperation framework between the federal state and the Region, co-funds and runs certain sections. This split explains why the future of the route depends on a negotiation between the Region and the federal government.

Why was the Metro 3 project frozen ?

The project was suspended after a highly critical report by the Court of Audit, which pointed to a surge in costs compared with initial estimates and a compromised financial sustainability. Regional negotiators then decided to freeze the extension as conceived and replace it with a tram. Added to this were technical difficulties linked to an unpredictable subsoil that slowed the sections already under way.

Will Metro 3 still serve the north of Brussels ?

The northern section of Metro 3, which was to run toward Evere and Schaerbeek, is the most uncertain part of the project : its fate depends on the negotiation between the Region and the federal government and on major technical challenges underground. In the meantime, these northern municipalities must be served differently, notably by the tram intended to complete the loop of the existing network.

Related formation events

  • 12 February 2026Brussels government agreement: 7 parties seal coalition after 613 days
  • 9 July 2026Metro 3: special committee adopts 22 recommendations

Sources

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