Coastal development in Mexico sits at the intersection of three separate layers of authority — federal, state and municipal — and a project can be fully approved by one while being blocked by another. Understanding which body decides what, and in which order, is the difference between a predictable timeline and an open-ended one.
The federal layer
Two federal processes dominate coastal work. The first is the Manifestación de Impacto Ambiental (MIA), reviewed by SEMARNAT, which assesses the environmental effect of the project. The second is the ZOFEMAT concession, which governs the federal maritime-terrestrial zone — the strip of land measured inland from the high tide line. Neither can be shortcut, and both have to be started early: they are usually the longest items on the critical path.
The state and municipal layers
Once the federal position is clear, zoning and density are confirmed against the applicable municipal plan, and the construction licence is issued locally. Projects that begin at this level and work backwards frequently discover that the density they designed for was never achievable.
Where projects actually stall
- Starting municipal paperwork before the environmental position is understood.
- Assuming the land title is clean without tracing the full chain of ownership.
- Treating the ZOFEMAT concession as a formality rather than a separate approval.
The practical lesson is that sequence matters as much as substance. If you are evaluating a coastal parcel, the questions worth answering before you commit capital are about the land and the federal position — not about the building.