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Brussels Governance Monitor

Molenbeek-Saint-Jean: PS-PTB coalition, partial transparency

Mayor : Catherine Moureaux (PS)Coalition : PS-Vooruit, PTB
Population : 98 713Postal code : 1080Area : 6.02 km²Council seats : 45
Up to date ·

Transparency grid

3/6 criteria

Budget online

Yes

Council minutes online

Partial

Council livestream

Yes

Municipal Open Data

No

Participation platform

Partial

Mandate registry

Yes

Key figures

98 713

Population

IBSA Mini-Bru 2026

6,02km²

Superficie

IBSA

Alerts

  • Unprecedented PS-PTB coalition — majority of 23/45 seats1 December 2024
  • Catherine Moureaux returns 2 March 2026 after 13 months' absence2 March 2026
  • Asbestos and mould in Machtens towers (~200 social housing units): demolition planned, no rehousing plan9 March 2026

The fourth most populated municipality

Molenbeek-Saint-Jean is the fourth most populated municipality in Brussels with nearly 100,000 inhabitants. An unprecedented PS-PTB coalition was formed with a slim majority of 23/45 seats.

Transparency: 3 out of 6 criteria

The budget is published online (downloadable PDFs), the council is broadcast via livestream on YouTube ("I like Molenbeek" channel), and the mandate registry is accessible via the annual report. Council minutes are partially online, citizen participation is limited to occasional workshops ("A Vision for Molenbeek"), and there is no Open Data portal.

Return of the mayor (March 2026)

After 13 months' absence for medical reasons, Catherine Moureaux resumed her duties as mayor on 2 March 2026. During her absence, the first alderman served as interim. The municipality faces a significant budget deficit.

Park West: temporary use made permanent

On 5 March 2026, the office of the State Secretary for the Environment announced the permanent continuation of Park West, a former 3-hectare railway site transformed into green space by Toestand vzw since 2022. Brussels Environment and Toestand will sign a new multi-year contract following a new public tender.

The site had nearly closed in 2025 due to lack of funding during the government formation crisis (no new public tenders possible under caretaker government). In the long term, the park will be redeveloped into a tree-rich, multifunctional urban park, with a cycling path, pedestrian trail and footbridge connecting to the future Beekkant square.

Asbestos in the Machtens towers (March 2026)

The two Machtens towers (~100 units each) face a dual problem of asbestos and mould. Residents on the upper floors have been relocated for fire safety reasons, whilst those on the lower floors remain in place with instructions not to drill or sand the walls.

The towers are scheduled for demolition, but no rehousing plan has been communicated. The municipality is requesting additional resources from the Region to manage the situation.

Source: La Libre (9 March 2026).

PS-PTB coalition: a first in Molenbeek

The PS-PTB agreement is a first in Molenbeek and is being closely monitored for its impact on municipal policy. The MR, third force (17.1%), sits in opposition.

Last updated: 17 March 2026

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