On this coast the environmental file is the project. Get it right and everything else is scheduling; get it wrong and no amount of construction expertise recovers the year you lose.
SEMARNAT handles federal environmental impact — the MIA — for projects whose sector, scale or location places them under federal jurisdiction, which covers most tourism development, coastal work and anything affecting forest land. The state environmental authority reviews smaller projects. CONAGUA governs water: extraction, discharge and federal water zones. ASEA regulates anything involving hydrocarbons, which is why service stations follow a separate track. Protected areas add the management programme of that specific area on top.
The environmental impact statement describes the project, its setting, the impacts it will cause and the measures that will prevent, reduce or compensate them. There is a simplified modality for smaller or lower-impact projects and a regional modality for larger developments or those with cumulative effects. Choosing the wrong modality is not a shortcut — it is a rejected file and a restarted clock.
Figures below cover the technical studies and filing for projects in this region. They exclude compensation measures, which vary enormously with what the site actually holds.
| Item | Scope | Typical cost and time |
|---|---|---|
| MIA, simplified modality | Smaller or lower-impact projects | $180,000 – $600,000 MXN · 3 – 6 months |
| MIA, regional modality | Large or cumulative-impact developments | $600,000 – $2,500,000 MXN · 6 – 12 months |
| Land-use change study | When forest vegetation is removed | $150,000 – $700,000 MXN · 3 – 8 months |
| CONAGUA water permits | Extraction, discharge, federal zone | Per project · 2 – 6 months |
| Environmental supervision during works | Compliance with imposed conditions | Monthly, for the duration of works |
The Yucatan peninsula is fractured limestone. Water that infiltrates reaches the aquifer quickly, and the aquifer discharges into cenotes and onto the reef. That single fact governs the environmental review here: any proposal that infiltrates untreated wastewater is dead on arrival, and stormwater handling, spill containment and treatment capacity get more scrutiny than the architecture. Solve them at concept stage, not after the design is fixed.
Puerto Morelos reef, Tulum, Cozumel, Isla Contoy, Sian Ka'an and the cenote corridors all carry their own management programmes with their own restrictions on density, height, vegetation removal and lighting. A lot inside or adjacent to one of them is not unbuildable, but it is a different project with a different timeline, and the price you paid for the land does not change that.
Related pages: Hotel and resort permits in Quintana Roo · Construction permits in Cancun · Wastewater and absorption wells in karst · Land use, COS and CUS
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