Quick answer
Can police remove squatters in California? Often not. Once they claim they live there, it becomes a civil matter, and the owner has to file an eviction (unlawful detainer). Changing the locks yourself is illegal.
Squatters in California: what owners can actually do
By SUM Property Management, licensed California property managers in Stockton and Modesto · Updated October 2026
Can police remove squatters in California?
Often not. Once the occupants tell officers they live there, police usually treat it as a civil matter. The owner then has to remove them through an unlawful detainer (eviction) case and a sheriff's lockout. A utility account in their name makes their claim look real, but it does not give them any right to the property.
Can I change the locks or shut off the utilities?
No. Removing people who are in possession without a court order is forcible entry under California Code of Civil Procedure §1159, and it exposes the owner to a lawsuit, even when the occupants never had a lease. Use the court process.
What if I don't know their names?
Serve a Prejudgment Claim of Right to Possession with the eviction papers (Code of Civil Procedure §415.46). It covers every occupant, named or unnamed, so the sheriff can remove everyone on lockout day, including whoever moved in last week.
What can I do while the eviction is pending?
Report crimes such as vandalism, threats, or breaking into spaces they don't occupy, to the police. Living there is a civil matter, but crimes are not, and every report goes in the court file. Lock and seal the shared spaces you control: basements, crawlspace vents, utility panels. Look after your paying tenants; they are the ones who leave if nobody answers at 1 AM.
How do I stop it happening between tenants?
Collect every key at move-out and re-key the unit the same day. Lock basements, garages, crawlspace vents and utility panels, and have someone walk vacant units every week. Most squatter cases start with a key nobody took back.
Own a rental in the Central Valley? We take the 2 AM texts.
Based on a real story from a property we managed. Names, places and details are changed, and some events are dramatized. This is general information, not legal advice.