Cal. Civ. Proc. Code §§ 1161, 1161a
Unlawful detainer: California eviction, and the notice that decides the case
A claim in California superior courts · Last verified August 26, 2026
Unlawful detainer is the fastest civil proceeding in California. Trial comes within 20 days of the answer. Discovery is compressed, continuances are hard to get, and the only question is possession.
That speed is bought with strictness. The notice is the case. A landlord who demands one dollar more than is owed, misdescribes the premises, or files a day early has not made a curable error — the action fails, and the only fix is to serve a proper notice and start again.
What the claim is
A landlord wants a tenant out, and the tenant will not leave.
The proceeding decides possession, plus back rent and holdover damages. It is not a forum for resolving title, and it cannot be used to try broader disputes between the parties.
Where the right comes from
Entirely statutory. CCP § 1161 defines when a tenant is guilty of unlawful detainer; § 1161a covers post-sale possession; § 1161b covers tenants after foreclosure.
Under § 1161(2), a tenant is guilty of unlawful detainer when rent remains unpaid for three days after written notice demanding payment or possession.
What a plaintiff has to prove
- A landlord-tenant relationship.
- Proper notice, served in a manner § 1162 permits.
- Expiration of the notice period without cure or surrender.
- Continued possession by the tenant.
There is no single CACI instruction covering the whole claim. Judicial Council forms govern the pleadings.
Note what is absent: no requirement that the landlord act reasonably, no balancing, no discretion to excuse a technical defect in the landlord's favour.
The notices — and which defect is fatal
Three-day notice to pay rent or quit, under § 1161(2). It must state the exact amount of rent due, excluding late fees and other charges. A notice demanding more than is owed is fatally defective, and so is one demanding rent for a period more than one year past. Commercial tenancies get a limited safe harbour under § 1161.1 for a good-faith estimate within 20%.
Three-day notice to perform covenant or quit, under § 1161(3), for a breach that can be cured.
Three-day notice to quit, under § 1161(4), for nuisance, waste, or illegal use — no cure offered.
Thirty or sixty days, for a no-fault termination: 30 days if the tenancy is under a year, 60 if a year or more.
Ninety days, for tenants after foreclosure and certain subsidised tenancies.
Counting matters. The three-day period excludes the day of service, weekends, and judicial holidays. Filing before the period fully expires voids the action.
Character of the notice requirement: jurisdictional as to the remedy, and non-curable. A defective notice deprives the court of the ability to award possession. There is no amendment that saves it — the landlord serves a new notice and files a new case.
Since 2020 most residential tenancies also require just cause to terminate after twelve months, along with relocation assistance for no-fault terminations. Where those apply, they are substantive elements, not procedural steps — omitting them means the termination itself was unlawful.
How long you have to file
Unlawful detainer is a summary remedy without a conventional multi-year limitations period. The right to possession accrues when the notice expires, and the landlord is expected to act promptly.
Delay carries its own risk: accepting rent after serving a notice can waive the right to proceed on it.
Who can be sued — and who cannot
The tenant and any subtenants in possession. The proper plaintiff is the landlord or owner entitled to possession.
Occupants who were never tenants are handled through different procedures.
Common defenses
Defective notice — the most successful defense, and the reason precision matters so much.
Breach of the implied warranty of habitability. California recognised it in Green v. Superior Court (1974), and it operates as a defense to nonpayment: a tenant who withheld rent because the unit was uninhabitable may reduce or eliminate what is owed.
Retaliatory eviction, where the termination followed the tenant's complaint or exercise of a legal right.
Waiver by acceptance of rent after the notice.
Improper service, raised by motion to quash rather than answer.
Failure to satisfy just cause or relocation requirements where they apply.
Anti-SLAPP generally does not reach an ordinary eviction — serving a notice and filing suit are not protected petitioning in a way that makes the eviction itself vulnerable. It can arise in collateral suits about the eviction.
What the claim pays
Possession — the point of the proceeding.
Unpaid rent and holdover damages for the period of wrongful possession.
Attorney's fees, where the lease provides for them — and remember that Civil Code § 1717 makes a one-sided fee clause reciprocal, so a tenant who wins recovers fees under a clause written to protect the landlord.
One tenant protection worth knowing. Under CCP § 1161.2, the court file is masked from public access, and a case resolved in the tenant's favour within 60 days stays sealed — which limits the "eviction record" following a tenant who won.
Jury trial: available, though rarely used given the timeline.
What people get wrong
"I can demand the rent plus late fees in the three-day notice." No. Demanding more than the rent owed makes the notice defective and the action fails.
"A small error can be fixed by amendment." It cannot. Serve a proper notice and start over.
"Three days means 72 hours." No. The count excludes the day of service, weekends, and judicial holidays.
"I can take partial rent and still proceed." Accepting rent after the notice can waive the right to proceed on it.
"The tenant has to pay to raise habitability." Habitability is a defense to the amount owed, not a side issue.
"I can use unlawful detainer to resolve who owns the property." No. The proceeding is limited to possession and cannot try title.
Where it came from
Unlawful detainer was created to replace self-help. Before it, a landlord's remedy was to change the locks or remove the tenant's belongings, and the statutory proceeding was the trade: give up self-help, get a fast court process instead.
That bargain explains everything about the claim's design. Speed is the consideration the landlord receives, and strict compliance is the price. A court asked to move this quickly does not have room to sort out whether a defect was serious.
The tenant-protective layers came later and are still arriving — habitability in 1974, retaliation protections, record sealing, and since 2020 statewide just cause and relocation requirements, on top of local ordinances that in many cities go further.
This is the fastest-moving area in California civil procedure. Notice periods, just cause thresholds, and relocation amounts change with some regularity, and local ordinances vary widely. Verify the current requirements for the specific city before relying on any general statement, including this one.
Common questions
How fast does an unlawful detainer case move?
Faster than any other civil action in California. Trial is set within 20 days of the answer under CCP § 1170.5, and the tenant's response deadline is measured in days rather than weeks.
What happens if the three-day notice demands the wrong amount?
The notice is defective and the action fails. Overstating the rent — including by adding late fees — is the most common fatal error, and it cannot be cured by amendment. The landlord must serve a proper notice and refile.
How are the three days counted?
Excluding the day of service, weekends, and judicial holidays. Filing before the period fully expires voids the action.
Can a tenant defend on the condition of the unit?
Yes. Breach of the implied warranty of habitability is a recognised defense to nonpayment and can reduce or eliminate the rent owed.
Will an eviction case show up on the tenant's record?
Not automatically. California masks unlawful detainer court files from public access, and a case resolved in the tenant's favour within 60 days remains sealed.