Five years after the floods, Liège turns to resilience planning
Five years after the July 2021 floods that devastated the Vesdre and Meuse valleys, the city and province of Liège are shifting from reconstruction to long-term adaptation, with local authorities framing the anniversary around flood-risk mapping, river-basin…
In 30 seconds
- Liège authorities are marking the fifth anniversary of the July 2021 floods with a focus on territorial resilience rather than reconstruction, according to Liège regional press reporting.
- The 13–16 July 2021 floods killed 39 people in Belgium and were the country's deadliest natural disaster in modern history.
- The Vesdre valley — Pepinster, Verviers, Trooz, Chaudfontaine — and Liège's Angleur district were among the worst-affected areas.
- A Walloon independent expert commission reported in 2022 on failures in early warning and crisis coordination between municipal, provincial, regional and federal authorities.
Liège is Wallonia's largest city and the capital of Liège province, sitting on the Meuse where it meets the Ourthe and, upstream, the Vesdre. In July 2021 exceptional rainfall over eastern Belgium produced the deadliest natural disaster in the country's modern history, hitting the Vesdre valley municipalities (Pepinster, Verviers, Trooz, Chaudfontaine) and Liège's own Angleur district hardest. The response has since been shared between the City of Liège, Liège province, the Walloon Region — which holds competence for spatial planning, non-navigable watercourses and reconstruction funding — and the federal level, which handles crisis coordination and the national disaster fund. The fifth anniversary in July 2026 is being used by local authorities to reframe the file around territorial resilience: flood-hazard mapping, soil permeability, water-retention capacity and building rules in flood plains.
Background
The floods of 13–16 July 2021 were the deadliest natural disaster in modern Belgian history, with 39 confirmed deaths in the country and severe damage across the Vesdre and Meuse basins. Neighbouring Germany's Ahr valley was struck by the same weather system with a far higher death toll. A Walloon independent expert commission reported in 2022 on failures in warning, coordination and crisis command across municipal, provincial, regional and federal levels. Belgium had experienced significant Meuse flooding before — notably in 1993 and 1995 — but nothing on the 2021 scale, which is why the event reset flood-risk assumptions for the whole basin.
What to do
Households in the Meuse and Vesdre valleys should check whether their address falls within a classified flood-hazard zone, as that classification affects building permits, renovation options and insurance conditions. Prospective buyers in Liège-area riverside districts should treat flood-zone status as a material factor in valuation and insurability.
The Belgian angle
Liège province and the Vesdre valley remain the epicentre. The municipalities worst hit in 2021 — Pepinster, Verviers, Trooz, Chaudfontaine — continue to carry the reconstruction burden, and Liège's Angleur district was among the flooded areas within the city itself. Walloon spatial-planning decisions on flood zones directly affect where housing can be rebuilt, at what cost, and with what insurance coverage.
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- 9 Jul 2026, 02:00
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