Landlord Compliance · RSO · Los Angeles County
What Is the Difference Between Rent Stabilization and Just Cause in Los Angeles?
Justin Borges, DRE #01940318 · 12 min read · Updated July 26, 2026
Rent Stabilization (RSO) covers most Los Angeles apartment buildings built before October 1, 1978, capping annual rent increases at 3 percent and requiring a legally valid reason for any eviction. The Just Cause Ordinance (JCO) covers nearly everything else in the city, requiring the same valid-reason standard for eviction but not capping the rent itself. Knowing which ordinance applies to your property changes what you can legally charge and how you can end a tenancy.
Some older guides still describe a separate one-percent addition landlords could tack on to the RSO increase when they paid a tenant's gas or electric bill. That add-on has been eliminated. The Los Angeles Housing Department's own rent increase calculator now states that a landlord can no longer include any further percentage for utilities. The lawful RSO ceiling for 2026 is 3 percent, full stop (LAHD).
Sources: LAHD RSO rent increase calculator, read directly February and July 2026; CA Civil Code §827 (30-day notice rule).
What You Will Learn
- What Is the Difference Between Rent Stabilization and Just Cause in Los Angeles?
- Which Los Angeles Properties Are Covered by Rent Stabilization?
- How Much Can a Landlord Raise Rent Under the RSO in Los Angeles?
- Which Los Angeles Properties Fall Under Just Cause Instead of RSO?
- What Are the Eviction Protections Under RSO Versus Just Cause?
- How Much Relocation Assistance Must a Los Angeles Landlord Pay?
- Do Registration Rules Differ Between RSO and Just Cause Properties?
- How Do I Determine Which Rules Apply to My Los Angeles Property?
- Frequently Asked Questions
What Is the Difference Between Rent Stabilization and Just Cause in Los Angeles?
Los Angeles runs two separate tenant-protection systems, and a landlord who owns property in the city needs to know which one applies. The Rent Stabilization Ordinance (RSO) is the older, stricter system: it caps how much rent can go up each year and requires a valid legal reason to evict. The Just Cause Ordinance (JCO) is newer and broader, covering almost every other rental in Los Angeles that RSO does not reach, but it only regulates evictions, not the rent amount.
A property can be subject to RSO, JCO, or in some cases the statewide Tenant Protection Act (AB 1482) instead, depending on when the building was constructed and how many units it has. Getting the wrong one applied to a Los Angeles rental is the single most common landlord compliance mistake this office sees.
Landlords assume Just Cause means no rent control at all. It usually means AB 1482 is doing the rent-capping instead, just under a different set of numbers.
Justin Borges, CA DRE #01940318Which Los Angeles Properties Are Covered by Rent Stabilization?
RSO generally covers residential buildings in the City of Los Angeles with two or more units that received a certificate of occupancy before October 1, 1978, along with most mobile home parks established before that date (LAHD). Single-family homes and condominiums are typically exempt from RSO, with one important carve-out: a single-family home or condo owned by a corporation, LLC, or real estate investment trust does not qualify for that exemption under state law and can still fall under rent-cap rules.
A Los Angeles building's exact status is not always obvious from the outside. Two identical-looking fourplexes on the same block can land in different categories depending on their original certificate of occupancy date, which is why the construction date, not the current appearance of the property, is the deciding factor.
How Much Can a Landlord Raise Rent Under the RSO in Los Angeles?
The RSO annual allowable rent increase is 3 percent as of 2026, confirmed directly on the LAHD rent increase calculator on July 25, 2026. That is the entire lawful ceiling. As of February 2, 2026, the calculator states plainly that a landlord can no longer include any additional percentage increase for utilities paid on the tenant's behalf, a change from the rule some older Los Angeles content still describes.
| Current Monthly Rent | Lawful 2026 Increase (3%) | New Monthly Rent | Old Utility Add-On |
|---|---|---|---|
| $1,500 | $45.00 | $1,545.00 | No longer permitted |
| $2,100 | $63.00 | $2,163.00 | No longer permitted |
| $2,500 | $75.00 | $2,575.00 | No longer permitted |
| $3,200 | $96.00 | $3,296.00 | No longer permitted |
A landlord who still adds a percentage for tenant-paid gas or electric on top of the 3 percent figure is charging above the legal maximum in Los Angeles and is exposed to a tenant overcharge claim. Two smaller pass-throughs remain lawful and are separate from the base increase: an RSO registration fee surcharge of $38.75 per unit, collected at $1.61 per month over 12 months with proper written notice, and a $2.83 SCEP surcharge, which is excluded from the base rent when calculating the increase itself (LAHD). Neither of those is a percentage add-on, and neither changes the 3 percent ceiling above.
Which Los Angeles Properties Fall Under Just Cause Instead of RSO?
The Just Cause Ordinance covers most Los Angeles residential rentals that are not already covered by RSO, including newer apartment buildings and many single-family rentals. JCO requires a legally valid reason to end a tenancy, the same standard RSO uses, but it does not set its own rent-increase cap the way RSO does.
That does not mean a JCO property in Los Angeles has unlimited rent increases. Most JCO-covered rentals are instead capped by the statewide Tenant Protection Act, AB 1482, which limits annual increases to 5 percent plus the change in the regional consumer price index, up to a maximum of 10 percent, for buildings older than 15 years that are not otherwise exempt (AB 1482). A newer Los Angeles building can still be exempt from AB 1482's cap during its first 15 years, though the Just Cause eviction rules still apply.
What Are the Eviction Protections Under RSO Versus Just Cause?
Both ordinances require a legally valid, or just cause, reason to end a residential tenancy in Los Angeles, split into at-fault reasons (non-payment, lease violation, nuisance) and no-fault reasons (owner move-in, substantial rehabilitation, permit-approved demolition, or withdrawal of the property from the rental market under the Ellis Act). Notice periods generally run 3 days for at-fault issues, 30 days for a month-to-month no-fault termination, and 60 days once a tenant has lived in the unit for a year or more.
RSO-covered Los Angeles properties layer additional procedural requirements on top of the just-cause standard, including specific LAHD filing steps for certain no-fault terminations, which is one more reason property owners should confirm RSO status before serving any eviction notice rather than assuming JCO's baseline rules apply.
How Much Relocation Assistance Must a Los Angeles Landlord Pay?
No-fault evictions in Los Angeles generally trigger a relocation assistance payment to the tenant, and the amount varies by tenant category, such as whether the tenant qualifies as a protected or standard tenant, and by how long the tenant has lived in the unit. Those amounts are adjusted on a recurring basis by LAHD.
This article intentionally does not print a specific relocation dollar figure. The current published schedule could not be independently confirmed against a primary LAHD source as of this writing, and an outdated number here could cause a landlord to underpay a tenant who is legally owed more. Call LAHD directly at 1-866-557-7368 for the current relocation assistance schedule before serving a no-fault notice on a Los Angeles rental.
Do Registration Rules Differ Between RSO and Just Cause Properties?
Yes. Every RSO-covered unit in Los Angeles must be registered annually with LAHD, and the registration fee can be passed through to the tenant at $1.61 per month for 12 months, totaling $38.75 per unit, only with proper advance written notice (LAHD). A landlord who fails to register an RSO unit can lose the ability to raise rent or pursue certain evictions until the property is brought current.
JCO-only properties in Los Angeles, meaning buildings not covered by RSO, are subject to a separate enforcement registration requirement rather than the RSO rent-registry system, so a Los Angeles owner with a mixed portfolio should not assume one registration filing covers every property.
How Do I Determine Which Rules Apply to My Los Angeles Property?
Start with the certificate of occupancy date for the specific Los Angeles building, then confirm the unit count, then check the current ownership structure if it is a single-family home or condo. LAHD's online lookup tools and the RSO rent increase calculator can confirm coverage for a specific address, and that confirmation should happen before any rent increase notice goes out, not after a tenant disputes it.
Because RSO, JCO, and AB 1482 interact differently depending on a property's exact facts, a Los Angeles landlord weighing whether to hold, refinance, or sell a tenant-occupied property often benefits from a conversation about how these rules affect the property's value and cash flow going forward.
Frequently Asked Questions
What is the difference between rent stabilization and Just Cause in Los Angeles?
The Rent Stabilization Ordinance (RSO) covers older Los Angeles buildings, generally two or more units built before October 1, 1978, and limits both annual rent increases and eviction reasons. The Just Cause Ordinance (JCO) covers most Los Angeles rentals not already covered by RSO, requiring a legally valid reason to evict but not capping the rent amount itself (LAHD).
Which properties are covered by the RSO in Los Angeles?
RSO generally covers residential buildings of two or more units in the City of Los Angeles with a certificate of occupancy issued before October 1, 1978, along with most mobile home parks established before that date. Single-family homes and condominiums are typically excluded unless owned by a corporation or REIT (LAHD).
How much can a landlord raise rent under the RSO in 2026?
The RSO annual allowable rent increase is 3 percent as of 2026, confirmed directly on the LAHD rent increase calculator. As of February 2, 2026, landlords may no longer add any further percentage for utilities they pay on the tenant's behalf. The 3 percent figure is the full lawful ceiling (LAHD).
Can a Los Angeles landlord still add a percentage for gas or electric that they pay?
No. That add-on was eliminated effective February 2, 2026. The LAHD rent increase calculator states plainly that a landlord can no longer include any additional percentage increase for utilities. A landlord who adds it anyway is charging above the legal maximum (LAHD).
How much relocation assistance must a Los Angeles landlord pay a tenant?
Relocation assistance amounts vary by tenant category, such as whether a tenant qualifies as a protected or standard tenant, and by length of tenancy, and they are adjusted periodically. Because the current published schedule could not be independently confirmed for this article, contact LAHD directly at 1-866-557-7368 for the exact current amount before serving any notice.
Do properties covered by the Just Cause Ordinance have a rent cap?
Not under the JCO itself, but most non-RSO rentals in Los Angeles are instead subject to the statewide Tenant Protection Act (AB 1482), which caps annual increases at 5 percent plus the regional CPI change, up to a maximum of 10 percent, for buildings older than 15 years that are not otherwise exempt.
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Related Resources
Have a Tenant-Occupied Property in Los Angeles?
Whether RSO, JCO, or AB 1482 applies to your building, a clear picture of your compliance position and your property's value are the right first step before your next rent notice.
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