Can a Tenant Change the Locks in California?

Renters ask us this in three versions: my ex still has a key, my roommate moved out, and my landlord will not rekey so can I do it myself. The honest answer is that the lease decides most of it, a few sections of the California Civil Code decide the rest, and a locksmith is not going to rekey your door behind your landlord’s back. What follows is general information, not legal advice. Statutes change, so check the current text and talk to a tenant rights organization or an attorney about your own situation.

The short answer

In most cases a tenant may not change, add or rekey a lock without the landlord’s consent, and after a permitted change the landlord gets a key. The clear exception is a tenant who is a victim of domestic violence, sexual assault or stalking, who has a statutory path to a fast lock change.

What does the lease say?

Nearly every California residential lease has a clause that says the tenant may not alter or replace locks, add locks or rekey without the landlord’s written consent, and must provide the landlord with a key to any lock the landlord agrees to. Read yours. If it says that, it controls, and breaking it is a lease violation even if your reason was good.

The clause exists because of Civil Code 1954, which lets the landlord enter the unit for repairs, showings and a pre-move-out inspection with reasonable notice, generally 24 hours in writing, and without notice in an emergency. A lock the landlord cannot open blocks that entry, which is why landlords treat it seriously.

What does California law require of the landlord?

Civil Code 1941.3 requires the landlord to install and maintain a deadbolt on each main swinging entry door and working locking devices on windows designed to open, with some exceptions. If your front door has no deadbolt, or the deadbolt is broken, you can ask for it in writing as a repair.

What the statute does not say is that the locks must be rekeyed between tenants. No California statute forces that. Most landlords do it anyway because the old tenant’s copies are an unknown, and the reasoning is laid out in Rekeying Between Tenants in California.

When can a tenant require a lock change?

Civil Code 1941.5 and 1941.6 cover tenants who are victims of domestic violence, sexual assault, stalking and similar abuse.

• 1941.5 applies when the person to be kept out is not a tenant of the same unit. The tenant gives the landlord a written request with documentation: a protective order, a police report, a statement from a qualified third party such as a counselor or health practitioner, or other documentation that reasonably verifies the abuse, which the statute says can include the tenant’s own signed statement. The landlord must change the locks within 24 hours of receiving it.
• 1941.6 applies when the abuser is a co-tenant. It requires a recent court order excluding that person from the unit, then the same 24-hour lock change.
• If the landlord does not act in time, the tenant may change the locks without permission, must do the work properly with locks of similar or better quality, must tell the landlord within 24 hours, and must give the landlord a key.

If this is your situation, a domestic violence advocate can help with the documentation, and a licensed locksmith can do the rekey the same day the landlord authorizes it or the statute allows it. Our lost or stolen keys page covers urgent rekeys generally.

What if the landlord refuses an ordinary rekey?

For a request that is not covered by the domestic violence provisions, the landlord can say no. That is not a violation by itself. What usually works is a short written request that names the reason, offers to pay, and promises a key. Most landlords say yes, and many book the locksmith themselves because they want to hold the new key.

The reverse is also true. A landlord may not change the locks to keep a tenant out as a way of forcing a move-out; Civil Code 789.3 treats that as an unlawful lockout. Access disputes go through notice and the courts, not the keyway.

Roommates and co-tenants

If two people are on the lease, both have a right to possession. One cannot lock the other out, and a locksmith will not rekey a door to exclude a named co-tenant. If a roommate has genuinely moved out, ask the landlord to release them from the lease and rekey. If the split is a breakup rather than a roommate leaving, Rekey After a Breakup, Divorce or a Roommate Moving Out covers the sequence.

Who can change the locks: situation by situation

What a renter can do without touching the lock

You can add security without changing the landlord’s lock. The August Wi-Fi Smart Lock replaces only the interior thumb-turn and the Level Bolt hides inside the door, so the exterior, the keyway and the landlord’s key stay exactly as they were. Both still need the landlord’s yes in most leases, but that yes is easy to get when nothing visible changes. The full pitch and the install gotchas are in Renter-Friendly Smart Locks, and the retrofit itself is on our August page.

Beyond that, ask the landlord to rekey at your move-in if it was not done. In student rentals around SDSU in the College Area and the apartment blocks of Pacific Beach, units turn over every summer and old keys are everywhere. Most owners agree once asked.

How to ask your landlord in writing

Keep it to one email:

1. State what you want: a rekey of the unit’s exterior locks, or permission to install a named retrofit lock.
2. State why in one line: a former occupant may still hold a key, or you want app control that keeps their key working.
3. Offer to pay, or ask them to book their own locksmith.
4. Confirm they will receive a copy of the new key, or that their existing key still works.
5. Ask for a reply by email so the consent is on record.

Keep the reply with your lease. A locksmith may ask to see it.

What landlords should do at turnover

Rekey every exterior cylinder or change every keypad code at each move-out, hand the new tenant a counted set of keys, and write it down. That routine answers every “who else has a key” question before it is asked, and it sidesteps the requests above because the tenant never has a reason to want the lock changed. Landlords across City Heights and the rest of the county run it through our landlord turnover rekey service, and property managers with several buildings add a master key so they carry one key for all of them.

Next step

Renters: send the email above, then book a rekey with the landlord’s consent in hand, or ask the landlord to book it. Landlords: set up a turnover routine through our landlord turnover service so the question never comes up.