Boundary and Property-Line Disputes in Guanacaste

The fence is not the boundary

In Guanacaste the registered survey and the thing on the ground disagree often, and the gap is rarely small. A lot of this land was measured decades ago, sometimes from landmarks that no longer exist, and then subdivided informally within families. Fences went where it was convenient. Nobody minded until somebody wanted to build, sell or borrow against it.

The law is clearer than most people expect about which one wins.

You can make your neighbour come to the line

Article 296 of the Codigo Civil gives the owner, the usufructuary, the user and anyone possessing as owner the right to compel the owners of adjoining properties to take part in demarcating the boundary between them, with the demarcation and marking done at shared expense.

Two things worth noticing. Your neighbour cannot simply refuse to engage. And the default is that you split the cost, which removes one of the usual objections before it is made.

Title first, possession only where title runs out

Article 297 is the one that decides most of these cases. Demarcation is done according to the titles of each party, and only where the titles are insufficient for the purpose is it done according to the possession the neighbours are in.

That is the opposite of what long-standing occupants usually assume. Thirty years of a fence in one place does not move a boundary that the titles define. Possession is the fallback, not the rule. It becomes decisive only where the documents cannot answer the question, which does happen on older fincas but is not the normal case.

When markers have been moved

Where someone has physically shifted the boundary markers, there is a possessory remedy: the interdicto de reposicion de linderos under article 106 of the Codigo Procesal Civil. It is fast, and it restores the position rather than deciding ownership.

It also has a hard deadline. Article 106.1 bars any interdicto once three months have passed since the start of the acts complained of, and the clock runs from when the acts began rather than from when you noticed. For an owner who visits twice a year, that window is usually gone before they see the problem, which is why the first conversation is so often about the slower routes instead.

What the Catastro can and cannot do for you

There is an administrative route, and knowing its limits saves money.

The Catastro Nacional is not an archive that accepts whatever is filed. It carries out legal and technical qualification of survey plans and checks new plans against existing registered ones, and under article 41 of the Reglamento a la Ley de Catastro Nacional it can suspend or refuse plans that fail the requirements. Where an overlap comes from an error in the registry itself, there is a correction route, and the Codigo Civil provides for modification of the entry.

What it cannot do is decide who has the better right. Where two apparently valid registered claims genuinely overlap, the administrative body records, freezes and flags, and the question of ownership goes to court. Owners sometimes spend a year in administrative filings believing it will resolve a dispute it structurally cannot resolve.

Worth knowing about the current regime: the Reglamento General del Registro Inmobiliario, Decreto Ejecutivo 44647-MJP, in force since 24 March 2025, provides for preventive measures including warning notes and immobilisation of registry entries, and distinguishes errors originating in the registry from inaccuracies that came from outside it. Immobilisation is actively used where properties overlap, and it is a useful tool while a dispute is being sorted out.

Where the land is agricultural

Deslinde and rectification of measurement fall expressly within agrarian court competence under article 2 of the Codigo Procesal Agrario, Ley 9609, along with possession, division, localizacion de derechos, demolition, suspension of works, titling and physical delivery. If the property is farmed, that is likely where this goes, and it is settled at the start.

Undivided rights are a related problem worth naming. A great many older Guanacaste fincas are held in derechos, where several people own percentage shares of one registered property without any of them owning an identified piece of ground. Converting a share into a located, surveyed parcel is its own process under the Ley sobre Localizacion de Derechos Indivisos, Ley 2755, and until it happens nobody can say precisely where anybody’s land is. Families discover this when one branch tries to sell.

How we work these files

Boundary work starts on the ground, not in a courtroom. We pull the folio real and the plano catastrado for both properties and any neighbouring ones that touch the line, check the registered surveys against each other for overlap, and get a surveyor onto the site to compare the plan with what is physically there.

Often that is the whole case. Sometimes the answer is that the fence is simply in the wrong place and moving it costs a fraction of arguing about it. Sometimes the plano itself is defective and the fix is registral rather than judicial. Litigation is what happens when neither of those resolves it, and the file that wins is the one where somebody walked the land first.

We will tell you when the survey says you are wrong. That is cheaper for you than finding out from a judge.

What we handle in boundary matters

• Demarcation of boundaries under articles 296 and 297 of the Codigo Civil
• Interdicto de reposicion de linderos where markers have been moved
• Overlapping registered surveys and traslape between neighbouring fincas
• Gestion administrativa before the Catastro and the Registro Inmobiliario
• Immobilisation and warning notes while a dispute is resolved
• Rectification of measurement where the registered area is wrong
• Localizacion de derechos indivisos on fincas held in shares
• Agrarian deslinde in the Nicoya, Santa Cruz and Liberia courts
• Encroaching construction and structures built over the line
• Access, servitudes and landlocked parcels
• Boundary review as part of purchase due diligence
• Negotiated settlement and registered correction without litigation

Common questions about boundaries

The fence has been there for thirty years. Does that settle it?

Usually not. Article 297 says demarcation follows the titles, and only where the titles are insufficient does it follow possession. A long-standing fence does not move a boundary the documents define. Possession decides it only when the paperwork genuinely cannot.

My neighbour refuses to discuss the boundary. Can I force it?

Article 296 gives you the right to compel adjoining owners to take part in the demarcation, and the cost is shared by default. Refusing to engage is not a position that holds.

Two planos overlap. Will the Registro sort it out?

Only part of it. The Catastro qualifies and can suspend or refuse plans, and errors originating in the registry can be corrected administratively. But where two apparently valid claims genuinely overlap, deciding who has the better right belongs to the courts. Knowing which of those two situations you are in is the first job.

Someone moved the markers. What can I do quickly?

The interdicto de reposicion de linderos is the fast remedy, but article 106.1 bars any interdicto three months after the acts began, counted from when they started rather than when you found out. If you are inside that window it is worth moving immediately. If you are outside it, there are slower routes and we will say so plainly.

Our finca is held in derechos among several relatives. Where does the boundary even sit?

Until the shares are located, nowhere in particular. Holding derechos means owning a percentage of one registered property, not an identified piece of ground. Converting that into a surveyed parcel runs under the Ley sobre Localizacion de Derechos Indivisos, Ley 2755, and families usually discover the issue when one branch tries to sell.

Do I need a surveyor before I need a lawyer?

You need both, and usually in that order for the field work. We pull the registry and cadastral position for every property touching the line and put a surveyor on the ground before anything is filed. A good share of these matters end there, because the measurement answers the question.

Related pages

• Agrarian law and land possession
• Squatters and possession claims
• Real estate and due diligence
• Where we work

Informacion general, no constituye asesoria legal. / General information, not legal advice. Case accounts on this site are anonymized and published with consent. Past results do not guarantee a future outcome.