Beyond the Federal Maritime Zone lies a category many beachfront owners do not expect: terrenos ganados al mar, land gained from the sea, formed by natural events or human action, typically sitting between the federal zone and the adjacent private property.
It is neither simply ‘yours’ nor simply ‘the beach.’ It has a regime of its own.
Its Legal Nature
Like the federal zone, land gained from the sea is, as a rule, part of the public domain of the nation. As such, in that state it cannot be transmitted to private parties, acquired by prescription, or seized.
The Narrow Path to Ownership
Unlike the federal zone, however, there are processes by which land gained from the sea may be removed from the public domain — desincorporado — and transferred to private parties, under defined restrictions. Determining its existence, location, and dimensions requires specialized technical assistance applying the official methodology in force.
Why It Matters to a Buyer
A beachfront property may abut, or appear to include, land gained from the sea without that land ever having been regularized. Treating it as private — or assuming a concession covers it — is a common and consequential error. The status of that strip belongs in the title review, not in an assumption.
On the coast, what was gained from the sea is rarely owned until the State has formally let it go.