Short answer. Public dominion property is devoted to public use or to a public service, or is a natural resource of the State. The Civil Code divides all property into public dominion and private ownership, and the consequence is severe: public dominion property cannot be sold, seized, or acquired by long possession.

What the law says

Property is either of public dominion or of private ownership.

Civil Code, Article 419 — Public Dominion and Private Ownership. Read the full provision →

The two categories the Civil Code recognises

Article 419 of the Civil Code makes the classification exhaustive: every piece of property in the country falls into one bucket or the other. Property of public dominion comprises those intended for public use — roads, canals, rivers, torrents, ports, bridges, banks, shores and roadsteads — and those which belong to the State and are intended for some public service or for the development of national wealth. Everything else, including property the State holds in its private capacity, is of private ownership. Note that ownership by a government body does not by itself make property public dominion. The State can own land the same way a private person does, and property of that kind is called patrimonial.

Why the classification is so consequential

Public dominion property is outside the commerce of man. It cannot be sold, donated, leased away as private property, mortgaged, or levied on to satisfy a judgment. It cannot be acquired by prescription, so no length of occupation — twenty years, fifty years, three generations — converts an occupant into an owner. It cannot be registered under the land registration system, and a title mistakenly issued over it is a nullity that confers nothing, even on a buyer who paid full value and checked the registry. That last point is where families lose everything: an innocent purchaser of registered land is normally protected, but not where the land was never registrable in the first place.

How land stops being public dominion

Only by an act of the State. Property of public dominion becomes patrimonial — and therefore alienable, registrable and susceptible of prescription — when it is no longer intended for public use or public service and there has been an official declaration to that effect. Two steps are usually required for public land: a classification as alienable and disposable, and an express declaration that it is no longer needed for public use. Mere disuse is not enough. A road nobody drives on and a plaza nobody visits remain public dominion until the State says otherwise, which is why long-standing occupation of an abandoned public area builds no rights at all.

Where this catches ordinary people

The recurring situations are foreshore and riverbank areas, the legal easement along the banks of rivers and along the shore, portions of road right-of-way absorbed into a fenced lot, dried-up creek beds, and reclaimed land. Houses stand on these for decades and are bought and sold among neighbours, and the arrangement holds until the government or a titled owner acts. Before buying land near water, near a road, or with an unusually cheap price and a thin paper trail, the classification of the land itself is worth checking before the title is. This page is general legal information rather than advice on a particular parcel, and no outcome can be promised; you can book a consultation to have a property's status examined.

Cases citing this provision

These Supreme Court decisions cite the provision above. We list them so you can read them yourself; the summaries of what each decided are not ours to give.

Related provisions

Note. Statute text quoted on this page is reproduced from the official enactment and is linked to the full provision. The explanation around it is general legal information from Vivas & Nobles Law Office, not legal advice. Whether it applies to your situation depends on facts only a lawyer reviewing them can assess.