Squatters Rights in California — What Property Owners Actually Need to Know

California recognizes two very different squatter concepts. The one that owns real estate news cycles — adverse possession — requires 5 continuous years of open, hostile occupation AND payment of the property taxes. It almost never happens on maintained property.

The one that actually costs Sacramento owners money is tenancy formation. Under CCP §1161, once a squatter can show 30+ days of occupation with utilities, mail, or a lock they installed, courts often force you to file an unlawful detainer instead of calling it trespass. That's 45–90 days and $1,500+ in fees.

The playbook is simple: catch them inside the first 24-hour trespass window. Our overnight patrols exist to give you that catch every single night your building sits empty.

FAQ — squatters rights california

Is 30 days enough for squatters to claim rights in California?

30 days doesn't grant ownership — that requires 5 years plus tax payment (adverse possession). But 30 days is often the informal line where police stop treating it as trespass and defer to civil court. Our reports show the actual arrival date so PD keeps it criminal.

Can I just change the locks on a squatter?

No. California prohibits self-help evictions (Civil Code §789.3) even against non-tenants once they've established residency signals. Doing it exposes you to statutory damages of $100/day plus the squatter's attorney fees.

Do I need to serve a formal notice?

For a true trespasser in the first 24-48 hours: no, PD can arrest under PC §602. Past that window, you'll usually need a 3-day notice to quit, then unlawful detainer. Our patrols document arrival time so you stay in the fast lane.