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A412 motorway: new legal setback for the City of Geneva

The Administrative Court of Appeal of Lyon dismissed the City of Geneva's request to suspend the works, Le Messager reported on 29 October 2026.

⏱ 1 min read

Background

Opponents of the A412 motorway, between Machilly and Thonon in Haute-Savoie, are filing appeal after appeal. The City of Geneva is challenging the environmental permit issued by the French authorities. It fears more commuter traffic, while the Léman Express already serves this section.

The key points

The Administrative Court of Appeal of Lyon dismissed the City of Geneva's request to suspend the works, Le Messager reported on 29 October 2026. RTS and the Tribune de Genève confirmed the decision the next day.

Six Geneva municipalities and associations were associated with the request. According to the court, no argument raises serious doubt about the legality of the prefectoral order. The works are continuing, as is the deforestation of the Chablais forest.

The Nature Protection Council had noted major damage to biodiversity, according to RTS.

Key figures

  • 6 : Geneva municipalities associated with the appeal

What's next

  • The appeal on the merits against the environmental permit has yet to be decided.

Read also

Sources

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