Mexico’s Supreme Court to Review Mahahual Land Use Case, Group Says

Chetumal, Quintana Roo — An environmental group says Mexico’s Supreme Court has agreed to review legal challenges to changes in the Mahahual Urban Development Program, a case that could set national precedents for protecting communities and ecosystems from land-use decisions.

The group, Defending the Right to a Healthy Environment (DMAS), said the court’s decision to take up the appeals is a historic step that could strengthen judicial safeguards for communities dealing with territorial planning decisions across the country.

The case stems from three amparo lawsuits filed by different groups of Mahahual residents against modifications to the town’s development plan, which allowed projects such as Royal Caribbean’s Perfect Day. The lawsuits led to complaint proceedings 76/2026, 112/2026, and 113/2026, previously before the First Collegiate Court of the 27th Circuit in Quintana Roo.

DMAS asked the Supreme Court in June to assume jurisdiction over the case, arguing it raised issues of national interest. The group wants the court to clarify the scope of the right to a healthy environment in relation to municipal development programs; recognize the legal standing of communities to challenge urban planning decisions; and ensure timely access to amparo protections in environmental matters, in line with Mexico’s Constitution and the Escazú Agreement.

The group also urged the court to apply environmental principles such as the precautionary principle, citizen participation, and the in dubio pro natura rule to land-use planning.

A Supreme Court ruling could establish binding criteria nationwide on judicial review of municipal development plans and access to environmental justice, DMAS said.