What does it take to win adverse possession in California?

Hostile

In short, without permission. What it really means is inconsistent with the rights of the true owner. Taking possession, claiming ownership and telling everyone you own it are all hostile to the actual owner's title.

Open and notorious

Open means not secret. Law students learn this from a case about a person who occupied a cave beneath someone else's land. The owner did not know, so there was no chance to remove the intruder, and the claim failed. Notorious means known around town. A California claim not based on a written title also has to show the land was protected by a substantial enclosure, or usually cultivated or improved.

Continuous for five years

Five years in California, in a row. That does not mean every day. It means using the property the way an owner of that kind of property would. An owner visits a cabin in the woods every month or two, so doing the same, openly, can count as continuous. The same goes for a boat slip, a dock or a trail.

The period can be longer in rare cases. If the true owner was a minor or lacked legal capacity when their title first came to them, that time generally does not count, up to a statutory limit.

Paying the taxes, and why adverse possession is rare in California

All of the state, county and municipal taxes assessed on the land for those five years, paid on time and proved with certified county records. They cannot be paid partially, so holding part of a parcel still means dealing with the tax bill for that land. In our experience this element stops many claims.

This answer is general information about California law and is not legal advice for any specific situation. Deadlines and exceptions turn on your facts. Code sections were checked against California Legislative Information on November 4, 2026.

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