Unauthorized subletting is the most common lease violation a Los Angeles County landlord will encounter, and it carries the highest revenue leakage. A tenant paying $3,200 a month who sublets two bedrooms on Airbnb at $185 a night collects roughly $11,000 a month while paying a fraction of that to the property owner. The legal remedy is an eviction, but the procedural path differs depending on whether the underlying tenancy is covered by AB 1482, LARSO, or another local ordinance.
Key Takeaway: A California landlord may terminate a tenancy for unauthorized subletting under Civil Code § 1995.260 (commercial) or the lease itself (residential), enforced through a three-day notice to perform covenants or quit under Code of Civil Procedure § 1161(3). For AB 1482 properties, unauthorized subletting qualifies as an at-fault just-cause ground under § 1946.2(b)(1)(C). LARSO and most local rent ordinances allow the same at-fault eviction without relocation assistance.
This guide walks Los Angeles County landlords through the lease analysis, notice drafting, evidentiary build, and unlawful detainer mechanics that produce successful subletting evictions.
What counts as unauthorized subletting under California law?
Unauthorized subletting in California occurs when a tenant transfers possession of all or part of the rental unit to a third party without the landlord’s written consent, when that consent is required by the lease. The transfer can be a formal sublease, a hand-shake arrangement, an Airbnb listing, a long-term roommate added after move-in, or a sham assignment to a relative. The legal test is whether a person not named on the lease has acquired a right of occupancy through the tenant’s act.
Most modern California residential leases include a prohibition or consent requirement. The California Association of Realtors Residential Lease (Form LR) at paragraph 11 reserves the landlord’s right to refuse subletting and assignment. Under Civil Code § 1995.260, in the commercial context the landlord’s consent right is enforceable and unreasonable withholding analysis follows Kendall v. Ernest Pestana, Inc. (1985) 40 Cal.3d 488. In residential contexts the lease language controls and California has not adopted a Kendall-style reasonableness gloss.
Does an Airbnb listing count as a sublet?
Yes. Posting a unit on Airbnb, VRBO, or Booking.com without landlord consent is unauthorized subletting under every standard California residential lease. The City of Los Angeles Home-Sharing Ordinance (LAMC § 41.18.1) also requires the host to be the primary resident, which independently excludes most tenant short-term rentals. Beverly Hills, Santa Monica, and Malibu impose stricter bans. We routinely use the listing itself, screenshots of bookings, and Stayguy/AirDNA data as primary evidence in the unlawful detainer.
What notice is required to evict for unauthorized subletting?
A California landlord serves a three-day notice to perform covenants or quit under CCP § 1161(3). The notice must identify the specific lease provision violated, describe the cure required (typically removal of the subtenant and termination of the sublease), and demand surrender if the tenant fails to cure within three days. Unlike a three-day notice for nonpayment of rent, this notice is alternative: the tenant may cure or vacate.
For AB 1482 properties, Civil Code § 1946.2(c)(1) requires the landlord to first serve a written notice of the violation and an opportunity to cure before issuing a notice to terminate. A common procedural mistake is skipping this preliminary notice. Skipping it gives the tenant a complete defense in the unlawful detainer.
How is the notice served?
Service follows CCP § 1162. Acceptable methods are personal service on the tenant, substituted service on someone of suitable age at the premises followed by mailing, or post-and-mail when no one is home. We document service with a declaration from the process server, photograph the posted notice, and retain the certified mail receipt. Defective service is the most common reason unlawful detainers are lost or refiled.
Is subletting a just-cause ground under AB 1482?
Yes. The Tenant Protection Act of 2019 (AB 1482) at Civil Code § 1946.2(b)(1)(C) lists material noncompliance with the lease as an at-fault just cause for termination, provided the violation continues after written notice to cure. Unauthorized subletting is a material violation in essentially every reported decision. The landlord does not owe relocation assistance for an at-fault termination under § 1946.2(d)(2). This is a substantial financial difference compared with no-fault grounds (owner move-in, withdrawal from market, substantial remodel), which require relocation payments under SB 567.
What about LARSO and other local ordinances?
The Los Angeles City Rent Stabilization Ordinance (LAMC §§ 151.00 et seq.) lists unauthorized subletting as a separate good-cause eviction ground under § 151.09(A)(2). Santa Monica Municipal Code § 1806(a)(2) and West Hollywood Municipal Code § 17.52.020(B)(2) include similar grounds. Beverly Hills Chapter 5 ordinances mirror the structure. In every Los Angeles County RSO jurisdiction we work in, the landlord must (1) file a copy of the notice with the local rent board within the required window (LAHD requires filing within three business days), and (2) preserve the local good-cause classification. Skipping the filing creates an affirmative defense.
What evidence proves the unauthorized sublet?
The seven categories of evidence that convert a subletting eviction from probable to certain are:
| Evidence Category | Practical Source | Weight in Court |
|---|---|---|
| Online listings (Airbnb, VRBO) | Screenshots with URL, date, host name; AirDNA reports | Strongest – direct admission |
| Booking confirmations | Email forwards from booked guests; review threads | High |
| Building access records | Key fob logs, access app history, intercom logs | Strong |
| Neighbor or HOA complaints | Dated emails, board minutes, security incident reports | Moderate – hearsay risk |
| Photos and videos | Lobby cameras, package thefts, parking violations | Strong |
| Utility usage spikes | Water, gas, electric bills compared to lease term baseline | Moderate – circumstantial |
| City complaint records | Code Enforcement, Short-Term Rental complaint history | Moderate |
How do we gather Airbnb evidence before the host hides it?
In our experience representing Beverly Hills, Santa Monica, and Westside landlords, the moment a tenant senses litigation they pull the listing, change the photos, or transfer it to a co-host. We capture the listing within 24 hours of suspicion using Wayback Machine, AirDNA market data, and notarized screenshot affidavits. Once the listing is preserved, the case is essentially over before the unlawful detainer is filed.
What is the unlawful detainer timeline for subletting cases?
From notice service to writ of possession, a clean subletting unlawful detainer in Los Angeles County runs 45 to 90 days. The accelerated unlawful detainer schedule under CCP § 1170.5 gives the landlord a trial within 20 days of the request. Default cases close fastest. Contested cases with tenant counsel from a legal aid organization run longer, particularly when the tenant raises habitability counter-allegations under Green v. Superior Court (1974) 10 Cal.3d 616.
Can the tenant cure by removing the subtenant?
Within the three-day window, yes. A CCP § 1161(3) notice is alternative: perform or quit. If the tenant terminates the sublease, removes the unauthorized occupant, and provides written proof within three days, the violation is cured and the eviction is moot. After the three days expire, the right to cure terminates and the lease can be terminated regardless of subsequent removal. This is a frequent settlement lever: cure now, lease ends in 60 days under a stipulated judgment.
Frequently Asked Questions
Can I evict if the lease is silent on subletting?
You can usually still terminate, but the legal route changes. California Civil Code § 1995.260 governs commercial leases. For residential leases without an express prohibition, the landlord may rely on no-just-cause termination if the property is exempt from AB 1482 and any local ordinance. For AB 1482 covered properties without a lease prohibition, the at-fault ground is harder to establish; a no-fault ground with relocation assistance is often the cleaner path. We recommend amending the lease at renewal to include an explicit consent requirement.
Does the tenant owe me the Airbnb profits?
Disgorgement of profits from unauthorized short-term rentals is recoverable as damages in some California cases, particularly when the listing violates a local ordinance or the lease specifically prohibits revenue-generating use. Standard measure of damages is the differential between contract rent and fair short-term rental value. We litigate disgorgement claims when the Airbnb revenue substantially exceeds the contract rent.
What if the subtenant refuses to leave after the tenant moves out?
A subtenant whose right to possession derives entirely from the original tenant has no greater rights than the original tenant. When the master tenancy terminates, the subtenant’s right to possession ends. We serve a separate three-day notice on the unauthorized occupant, name them as a Doe defendant in the unlawful detainer, and proceed to a writ of possession that names every occupant.
Does it matter if the sublet has been ongoing for years?
It matters for waiver and estoppel analysis. A landlord who knew of the sublet for an extended period and accepted rent without objection may face a waiver defense. We urge clients not to wait. The cleanest cases are those filed within 30 to 60 days of discovery, with a paper trail of objection and no acceptance of rent attributable to the unauthorized occupancy.
What does it cost to evict a subletting tenant?
Filing fees in LA County Superior Court are $385 for cases under $35,000. Process server costs run $75 to $150. Attorney fees on a contested subletting unlawful detainer typically run $3,500 to $9,500 through trial, recoverable from the tenant under most standard California residential leases that include a prevailing-party clause. Borna Houman Law bills hourly on landlord-tenant matters at premium rates appropriate to the complexity and stakes.
Talk to a Los Angeles landlord eviction attorney
Unauthorized subletting drains revenue, exposes the property to ordinance violations, and increases insurance and HOA liability. The longer the violation continues, the harder the cure conversation becomes and the higher the chance of a waiver argument at trial.
Borna Houman Law represents Los Angeles County landlords on subletting evictions, Airbnb violations, and unauthorized occupant removals. We work from preservation through writ of possession. Call (888) 42-BORNA to schedule a confidential consultation.
For related landlord guidance, see our step-by-step guide to evicting a tenant in California, our CCP § 1161(3) breach-of-lease eviction guide, and our guide to Los Angeles short-term rental laws.
Disclaimer: This article is for general information for property owners and is not legal advice. Reading it does not create an attorney-client relationship with Borna Houman Law. Consult an attorney about your specific lease, jurisdiction, and tenancy facts.
