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Understanding Adverse Possession in California: A Guide for Property Owners and Claimants

Posted by Steve Lopez | Jan 10, 2025 | 9 Comments

Adverse possession is a legal concept that sparks strong opinions. For some, it seems like a loophole enabling squatters to “steal” land. For others, it's a fair way to ensure unused or neglected property is put to productive use. Whether you see it as theft or justice, adverse possession plays a significant role in property law. But how does it work, and what does it entail in California? Here's an in-depth look at the state's adverse possession laws and how they apply

What Is Adverse Possession?

Adverse possession occurs when an individual occupies a neglected or unused property in a way that meets certain legal criteria, allowing them to acquire ownership rights over time. The principle is rooted in the idea that property should not remain idle and neglected indefinitely. Instead, it rewards those who actively maintain and use the land.

Importantly, adverse possession is not a hidden or secretive process. The law requires possession to be open and obvious, giving the rightful owner an opportunity to reclaim the property if they choose. In California, the person seeking to claim ownership through adverse possession must meet strict requirements over a continuous period of five years.

California's Adverse Possession Laws

State laws governing adverse possession vary widely, and California has its own specific requirements. Here are the basics:

Key Provisions of California Law

  • Code Sections: Civil Procedure Code §§ 318, 325, 328
  • Time Requirement: At least five years of continuous possession
  • Payment of Taxes: The claimant must pay property taxes for the entire five-year period
  • Landowner Challenges:
    • If the rightful landowner has a legal disability (such as being a minor or incapacitated), they have 20 years to act.
    • Once the disability is removed, the landowner has five additional years to challenge the adverse possession.

The Four Elements of Adverse Possession

To successfully claim adverse possession in California, the claimant must satisfy all four of the following elements:

1. Hostile Claim

This doesn't mean the claimant has to engage in conflict. Instead, “hostile” refers to the claimant's intent to possess the property without the owner's permission. This can occur in one of three ways:

  • Honest Mistake: The claimant mistakenly believes they have a right to the property (e.g., relying on a faulty deed or incorrect survey).
  • Simple Occupation: The claimant uses the property without knowledge of ownership boundaries.
  • Intentional Trespassing: The claimant knowingly occupies the property despite being aware it belongs to someone else.

2. Actual Possession

The claimant must physically occupy the property and treat it as their own. This means actively using or maintaining the land, such as building a fence, cultivating crops, or making improvements.

3. Open and Notorious Possession

The occupation of the property must be visible and obvious to others. The idea is to give the rightful owner notice of the trespass, allowing them an opportunity to take legal action if desired. Secret or hidden use of the property does not qualify.

4. Exclusive and Continuous Possession

The claimant must possess the property exclusively, without sharing control with others, and must do so without interruption for at least five consecutive years. Temporary absences, such as vacations, do not necessarily break continuity if the claimant maintains control over the property.

Payment of Property Taxes

A unique requirement of California's adverse possession laws is the payment of property taxes. The claimant must:

  • Pay all state, county, or municipal taxes levied on the property for the entire five-year period.
  • Provide documentation, such as tax receipts, to prove consistent payment.

This requirement underscores the principle that the claimant is taking on the responsibilities of ownership, not just reaping its benefits.

Challenges to Adverse Possession

Property owners have the right to challenge adverse possession claims. Common defenses include:

  • Interruption of Possession: If the owner reclaims control of the property at any point, the clock resets on the five-year possession period.
  • Payment of Taxes: If the claimant fails to meet the tax requirement, the claim is invalid.
  • Owner's Legal Disability: As mentioned earlier, if the property owner is legally disabled, the timeline for challenging adverse possession is extended.

The Importance of Legal Guidance

Adverse possession cases can be legally complex and often contentious. For claimants, meeting all requirements can be challenging, particularly the strict five-year possession and tax payment period. For property owners, defending against adverse possession requires swift and decisive action.

At the Law Office of Steve Lopez, we have extensive experience representing both claimants and property owners in adverse possession cases. Whether you're looking to assert a claim or protect your property rights, our team provides the strategic legal advice you need.

Final Thoughts

Adverse possession is a powerful tool in property law, balancing the rights of landowners with the practical need for property to remain in productive use. However, it's a process governed by strict legal standards. Understanding these requirements is essential to either assert a claim or defend against one.

If you have questions about adverse possession or need assistance navigating property disputes, contact the Law Office of Steve Lopez today. Let us help you protect your rights and secure your property's future.


Disclaimer

This article is for informational purposes only and does not constitute legal advice. The information provided herein may not reflect the most current legal developments and should not be relied upon as a substitute for consultation with a qualified attorney. For advice regarding your specific situation, please contact the Law Office of Steve Lopez or a licensed legal professional in your area.

About the Author

Steve Lopez

Steve Lopez is a bilingual attorney with over 22 years of experience in civil litigation, estate planning, and family law. With a background in engineering and a Master's in Negotiations and Conflict Resolution, Steve combines analytical precision and advanced conflict resolution skills to deliver effective legal solutions. Fluent in English and Spanish, he provides culturally sensitive representation to individuals and businesses across Southern California. Steve is experienced in business disputes, real estate litigation, employment defense, and mediation. As a volunteer mediator and active community member, Steve is dedicated to achieving fair resolutions and delivering personalized, results-driven legal services.

Comments

Andres Fierro Reply

Posted Sep 02, 2025 at 20:36:26

How would you do an adverse possession claim when the property owner has died and you have been living there and paying the property taxes for last 5 years? Is it easier if there is no one to challenge the AP? Thank you.

Steve Lopez Reply

Posted Oct 07, 2025 at 21:08:09

Excellent question, Andres — and thank you for reading the article. When the record owner has passed away, an adverse possession claim becomes more complex, not necessarily easier. The claim would still need to meet all legal elements under California law: open and notorious possession, continuous occupancy for at least five years, payment of all property taxes during that period, and possession that is hostile to the true owner’s title.

If the deceased owner’s estate or heirs have not taken action, it may reduce the likelihood of immediate challenge, but legal title still rests with the estate or heirs until properly transferred. You’d likely need to quiet title through the court to establish ownership formally.

If you’d like, I can explain what steps are typically taken in that situation — feel free to reach out at stevelopezlaw.com
.

M. George Reply

Posted Nov 21, 2025 at 22:22:59

If a Trial Stipulation is entered in an adverse possession case that each party has paid all the taxes on their own parcel and the deeds are correct, is the party claiming adverse possession of the property required to dismiss that cause of action under State Bar Rule 3.3(a)(1)?

M. George Reply

Posted Dec 13, 2025 at 15:49:09

If the parties in an adverse possession cause of action enter a Trial Stipulation that each party has paid taxes only on their own parcel, is the party claiming adverse possession required to dismiss the case?

Rebecca Reply

Posted Dec 23, 2025 at 20:04:09

What if someone bought property in the 1950’s with an established dwelling and another party bought the adjoining property in the 70’s, and had it surveyed, only to find the property was 37’ into the house, and 9’ into the property next door? My grandparents lived here taking care as if it was theirs, and now I own it and the other owners don’t live in the property next door, but want me to make it right.

David Reply

Posted Jan 11, 2026 at 17:37:40

Good article!

My mother in law has owned her house for almost 40 years and she’s maintained a small sliver of her neighbors land alongside the front lawn and her backyard as her own during this time including adding plants, upkeeping the lawn and adding a fence. This portion is about 1 ft in width.

Her neighbor sold her house recently and the new owners are attempting to reclaim the land and do work on their garage which would include needing access to our backyard, beyond the fence and this 1-foot portion of land.

Even if there is way to reclaim this land in the backyard they would not be able to work on one side of the garage without being on our official property.

Curious if this recent sale would allow them to reclaim this land?

Debra Shelton Reply

Posted Jan 22, 2026 at 11:36:31

I would like to know if it is possible to find out the taxes on a piece of a larger property and if only wanting that piece and have been using it and clearing it of weeds every year for 36 years can I get just that piece of the property ?

Sinai Franco Reply

Posted Jan 27, 2026 at 10:21:56

no, it doesn’t have to be dismissed.
An adverse possession case requires proving several different things, not just who paid the property taxes or whether the deeds are valid. A trial stipulation simply means both sides agree on certain facts so they don’t have to argue or prove them at trial.

By agreeing that each party paid their own taxes and that the deeds are correct, the parties are only narrowing the issues, they are not admitting that the adverse possession claim is invalid. The person claiming adverse possession still has to prove the other required elements, like using the property openly, continuously, and without permission for the required time period.

Disclaimer: This response is for general informational purposes only and is not legal advice. Legal outcomes depend on specific facts and laws, and you should consult a qualified attorney about your particular situation.

Steve Lopez Reply

Posted Apr 24, 2026 at 17:07:34

Debra, great question—this comes up more often than people think.

For property taxes, they’re typically assessed on the entire parcel, not just a portion of it. You can check the full parcel’s taxes through the Los Angeles County Assessor (or the assessor in your county), but they usually won’t break it down for just a piece unless the property has already been legally subdivided.

As for claiming only part of a property through adverse possession in California, it is possible—but it’s not easy. You would need to show that your use of that specific portion has been open, notorious, continuous, and hostile for at least five years, and importantly, that you paid the property taxes on that portion during that time. Simply maintaining or clearing the land, even for many years like 36, is usually not enough by itself.

In many cases like yours, the more practical path is to approach the owner about a formal agreement, lot split, or purchase.

DISCLAIMER:
The information provided in this blog and in any comments or responses is for general informational purposes only and does not constitute legal advice. Reading this content or interacting through comments does not create an attorney-client relationship with the Law Office of Steve Lopez or SoCal Mediation. Laws vary by jurisdiction and the application of law depends on the specific facts of each case. You should not act or rely on any information provided here without first seeking advice from a qualified attorney regarding your individual situation.

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Downey, California Attorney

At the Law Offices of Steve Lopez, we represent individuals, families and businesses throughout California in legal matters ranging from Real Estate, Civil Litigation, Family Law, and Estate Planning.

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