A Deep Dive into Adverse Possession Law: What You Need to Know Before Losing Land Rights

Land is a high-value asset that many people keep as an inheritance, an investment, or for future use. However, a problem that many landowners overlook is "leaving the land abandoned for too long," allowing others to occupy, farm, build structures, or fence it off as if it were their own.

This can lead to a dispute known as adverse possession (or Krob-Khrong-Por-Pak). It is a legal principle where someone who is not the original owner "may obtain ownership" of another person's property if they meet specific legal conditions. Section 1382 of the Civil and Commercial Code stipulates that if a person possesses another person's property peacefully, openly, and with the intention to own it, and does so continuously for 10 years for immovable property, they may legally acquire ownership.

Note: This article is for general information and basic understanding only and does not constitute specific legal advice. If you are currently facing a dispute, you should consult a lawyer or your local land office.

What is Adverse Possession?

Adverse possession is when a person occupies another's property for the duration specified by law. The nature of this possession must not be a temporary, unauthorized, or vicarious stay (i.e., staying on behalf of the owner), but rather acting as if they are the true owner of that property.

In simpler terms, if a landowner neglects their property and someone else begins to use it openly, continuously, and acts like the owner for a long period, they may claim ownership rights in the future.

Key Conditions for Adverse Possession of Land

Claiming adverse possession does not happen easily just because someone is living on another person's land. It must meet several critical conditions simultaneously, as follows:

1. It must be the possession of someone else's property

The person claiming adverse possession must occupy land or property belonging to someone else, not their own, and not a case where they have a right to stay based on a contract, such as a tenant, caretaker, or a relative whom the owner allowed to stay temporarily.

2. The possession must be peaceful

The possession must not involve force, threats, seizing, or violent disputes throughout the duration. If the owner objects, files a lawsuit, reports to the police, or clearly displays that they are asserting their rights, it becomes a significant factor that can invalidate the claim of adverse possession.

3. The possession must be open

The possession must be visible to the general public, such as living there, building a fence, building a house, farming, or using the land in an obvious manner, rather than sneaking in to use it occasionally.

4. There must be an intention to own

The core principle is the "intention to own." The possessor must behave as if they are the landowner, such as maintaining, utilizing, improving the area, building structures, or keeping others out. If one stays based on the owner's permission—such as by renting, borrowing, or staying on their behalf—it is not a genuine intention to own.

5. Must be in continuous possession for 10 years for immovable property

For land or houses, which are immovable properties, the law specifies a duration of 10 years. For movable properties, the law specifies 5 years, according to the principle in Section 1382.

What Types of Land Are at Risk of Adverse Possession?

Land at risk is usually land that the owner has not looked after for a long time, such as:

Vacant land without fences or ownership signs, inherited land where heirs live in different locations, land in provinces that the owner never visits, land left for neighbors to use as a path or for partial use, or land where others have built houses or farms without the owner ever objecting.

However, land that can be claimed via "adverse possession" must generally be land with full ownership, such as a Title Deed (Nor Sor 4). Land documents like Nor Sor 3 or Nor Sor 3 Kor represent rights of possession, not absolute ownership like a Title Deed. Consequently, these cases involve "usurpation of possession," where the law mandates filing a lawsuit to reclaim possession within 1 year from the date of the encroachment.

Can Government or Public Land Be Claimed via Adverse Possession?

In principle, government land or public property cannot be claimed via adverse possession. This is because Section 1306 of the Civil and Commercial Code prohibits the use of prescription as a defense against the state regarding public property. The Department of Lands states that the principles of adverse possession under Sections 1382 to 1386 cannot be applied to public domain property.

Therefore, no matter how long someone builds a house, farms, or uses public land, they will not acquire ownership of that land.

Once the 10-year period is reached, does one become the owner immediately?

Although the law stipulates that one may acquire ownership once the conditions are met, in practice, if one wishes to change the name on the title deed or register rights correctly, the claimant must proceed through the court. A final court judgment or order confirming ownership is required before submitting it to the competent official to register at the land office.

In other words, "10 years" does not mean you can walk into the land office and change the name immediately; you must prove your rights through the legal process.

Evidence Typically Used in Adverse Possession Cases

If a dispute arises, evidence is key because the court must determine whether the possession was peaceful, open, continuous, and with the genuine intention to own. Examples of evidence often used include:

• Photographic evidence of the usage of the land over time.

• Witness testimonies, such as from neighbors, village heads, or local residents.

• Evidence of building houses, fences, farms, or property improvements.

• Local tax payment records or relevant tax documents, if any.

• Water or electricity bills, or documents proving residency.

• Maps, satellite imagery, or survey data.

• Letters of objection, legal notices, or evidence that the original owner previously asserted their rights.

For landowners, evidence showing that they maintained, asserted rights, or did not consent to others using the property will help reduce the risk of such claims.

How Should Landowners Prevent Losing Their Rights?

The best prevention is not to leave land in an "unsupervised" state for a long time. Landowners should take the following steps:

1. Inspect the land regularly

You should inspect your land at least 1–2 times a year, especially for land in provinces or inherited property that is not being occupied. If you find someone using your land, take action immediately.

2. Install fences or clearly mark boundaries

Fences, boundary markers, or ownership signs let outsiders know the land has an owner and reduce the chance of accidental encroachment.

3. Post "No Trespassing" signs

Signs should clearly state that the land is private property and that entry without permission is prohibited, along with contact information for the owner or caretaker.

4. Create written contracts if allowing others to use the land

If you allow relatives, neighbors, or others to use the land temporarily, create a written permission letter, loan agreement, or lease agreement to confirm they are staying with permission, not with an intention to own.

5. Quickly object to any encroachment

If you find an intruder, send a written notice to vacate, file a police report, record it in the police log, or consult a lawyer to initiate legal proceedings. Do not let them stay continuously for a long time.

6. Check title deeds and land boundaries

Verify your pins, boundaries, and ownership documents against the actual site, as many disputes arise from unintentional boundary encroachments.

Scenarios Landowners Should Be Wary Of

Scenario 1: Neighbors using the land as an access path for many years
If the owner has never objected and the other party uses the space openly and continuously, a dispute over the right of way or other legal claims may arise. You should create a clear written permission agreement.

Scenario 2: A relative asks to live on the land, but there are no documents
Even if it started with permission, as time passes and generations change, ownership claims may arise. You should document the residency status from the beginning.

Scenario 3: Vacant land in a province is used by others for planting crops
Even if it is just planting crops, if left long-term without objection, it could become a dispute that must be proven in court.

Scenario 4: Buying second-hand land without inspecting the site
Sometimes there are no issues with the title deed, but in reality, someone is already living on or using the land. Buyers should inspect the land in person, ask neighbors, and check the possession history before purchasing.

Frequently Asked Questions About Adverse Possession

How many years are required for adverse possession?

For immovable property, such as land or houses, one must possess it continuously for 10 years. This must be peaceful, open, and with the intention to own, as per Section 1382.

If someone has lived on my land for only a few years, will they get ownership?

Generally, the 10-year condition for immovable property has not been met, but the owner should not remain idle, as leaving it for too long could create problems in proving rights in the future.

If I rent out land for more than 10 years, can the tenant claim adverse possession?

In principle, a tenant is staying based on the right from a rental contract, not with the intention to own. However, the owner should have a clear rental contract, records of rent payments, and documents for contract renewals.

Can land with Nor Sor 3 or Nor Sor 3 Kor documents be claimed via adverse possession?

Generally, this is not "adverse possession" in the same way as a Title Deed, because Nor Sor 3/3 Kor documents are rights of possession, not absolute ownership. However, there is an issue of "usurpation of possession," and the person being encroached upon must be careful about filing a lawsuit to reclaim it within 1 year.

If the land belongs to the state, will one acquire ownership after staying for a long time?

No. Public property of the state cannot be claimed via adverse possession based on the principle explained by the Department of Lands regarding Section 1306.

Summary: Do Not Leave Land Unattended Until It Becomes a Legal Problem

Adverse possession law is something every landowner should know, because being the owner on paper alone may not be enough. If you allow others to use the land openly, continuously, and without objection for a long time, it could lead to an ownership dispute.

The most important thing is for the owner to show their ownership regularly—whether by inspecting the land, fencing it, posting signs, signing contracts when allowing usage, and taking immediate action when encountering intruders. Prevention from the start is always easier than proving your rights in court later.

In short: If you have land, you must look after it. If others are using it, get it in writing. If someone encroaches, object quickly—before "your land" becomes a lawsuit that takes a long time to resolve.