TL;DR — 30 seconds
Most OC cities follow state law (AB 1482) without adding local rent stabilization. Santa Ana is the major exception — the RSO covers pre-1995 multi-unit buildings with an 80%-of-CPI cap, 3% ceiling. The RSO also adds just-cause-from-day-one, registration requirements, anti-harassment provisions, and tenure-based relocation. Verify any city ordinance at the city's housing program page; rules change.
Santa Ana — the OC outlier
Santa Ana's Rent Stabilization and Just-Cause Eviction Ordinance (NS-3010 and subsequent amendments) is the major OC local ordinance. Enacted in late 2021 and effective 2022, it covers multi-unit buildings of two or more dwelling units where the Certificate of Occupancy issued on or before February 1, 1995.
The Santa Ana RSO points that matter
- Cap: 80% of CPI, with a 3% absolute ceiling. Sits well below AB 1482's 5%+CPI in normal years.
- Just cause from day one on covered units — not the AB 1482 12-month trigger.
- Relocation: tenure-based escalator. Higher tiers for seniors, disabled tenants, and households with minor children.
- Rent Registry: annual registration and per-unit fee. Actively enforced.
- Anti-harassment: civil penalties up to $10,000 per violation.
Pre-1995 multi-unit in Santa Ana? It's not AB 1482 — it's the RSO
Owners coming from outside OC routinely miss this. AB 1482's 5%+CPI is the wrong card to read on a Santa Ana RSO-covered property. The 80%-of-CPI / 3%-ceiling number is dramatically tighter, the Rent Registry filing is mandatory, and the just-cause obligations attach earlier than AB 1482 would.
The rest of OC — mostly state law
Other Orange County cities — Irvine, Newport Beach, Costa Mesa, Huntington Beach, Anaheim, Tustin, Mission Viejo, San Clemente, Dana Point, and the others — do not have local rent stabilization ordinances comparable to Santa Ana. AB 1482 and state law govern. Local rules in these cities are typically limited to:
- Standard zoning and STR (short-term rental) ordinances varying by city.
- City-specific fair housing implementing regulations (where applicable).
- Construction and habitability code enforcement.
OC city-by-city — what to check
| City | Rent stabilization? | Other notable rules |
|---|
| Santa Ana | Yes — RSO covers pre-1995 multi-units | Anti-harassment, registry, just-cause day one |
| Irvine | No | STR ordinance; standard zoning |
| Newport Beach | No | STR restrictions; coastal commission overlay on some properties |
| Costa Mesa | No | STR ordinance; standard zoning |
| Huntington Beach | No | STR ordinance |
| Anaheim | No | STR ordinance; standard zoning |
| Tustin, Orange, Garden Grove | No | State law governs |
| San Clemente, Dana Point, Laguna Beach | No | Coastal commission overlay; STR rules |
| Unincorporated OC | No | Subject to county code |
This table is a starting point. Verify the current rules at the city's housing or community development page before relying on it — cities occasionally add or amend ordinances.
OC-specific practical issues
- Coastal commission overlay. Properties in the coastal zone (Newport Beach, Laguna Beach, San Clemente, Dana Point, Huntington Beach beachfront) have additional California Coastal Commission rules around development and short-term rentals. Doesn't directly affect rent stabilization but limits some property uses.
- STR ordinances. Most OC coastal cities restrict short-term rentals (Airbnb, VRBO) through zoning or registration. See the subletting page.
- OC Superior Court UD docket. One of the busier UD dockets in California outside LA. Typical scheduling and process described on the eviction rules page.
Common questions
Which OC cities have rent control?
Santa Ana is the primary one (RSO, pre-1995 multi-units). Most other OC cities follow state law without adding local rent stabilization.
What's the Santa Ana RSO cap?
80% of CPI with a 3% absolute ceiling. Lower than AB 1482's 5%+CPI in normal years. Verify the current allowable percentage on the city's rent program page before each rent increase.
Does AB 1482 apply on top of Santa Ana RSO?
No. When the RSO applies, it preempts AB 1482 for those units. Santa Ana properties outside the RSO fall back to AB 1482 if otherwise covered.
Are there OC anti-harassment ordinances?
Santa Ana has them within the RSO. Other OC cities don't have city-level anti-harassment ordinances comparable to LA City TAHO. Outside Santa Ana, harassment claims run on state law.
CA Landlord Laws