Why Altadena Has Some of the Strictest Rental Property Rules in the State

Every city handles rental property rules a little differently. In Altadena, California, there are 2 distinct rules that residents and property owners should be aware of. Some are stricter than what neighboring cities enforce, and others are more relaxed. Here is what you need to know.

Just Cause Eviction

Tenants in Altadena covered by the LA County RSTPO can be evicted only for an enumerated 'just cause' — non-payment, lease violation, nuisance, owner move-in, withdrawal from market (Ellis Act), or substantial remodel — with relocation assistance for no-fault terminations.

Key details: Code Section: LA County Code Ch. 8.52. No-Fault Relocation: 2 months' rent (3 if vulnerable). Statewide Backstop: AB 1482 / Civ. Code 1946.2.

Wrongful eviction creates a tenant cause of action with treble damages and attorney's fees under Ch. 8.52 and Civ. Code 1946.2.

This is not one of those rules that cities tend to ignore. Altadena actively enforces its just cause eviction requirements.

Rent Control

The LA County Rent Stabilization & Tenant Protections Ordinance (RSTPO) caps annual rent increases in covered Altadena multi-unit buildings (built before Feb 1, 1995) at 3% or 60% of CPI, whichever is lower (effective 2025).

Key details: Authority: LA County RSTPO (Ch. 8.52). Cap (2025): 3% or 60% CPI (lower). Coverage: Multi-unit built pre-Feb 1, 1995. Small Landlord Bonus: +1%. Admin Agency: LA County DCBA.

Excess rent increases must be refunded. Tenants may file complaints with DCBA; civil penalties up to $10,000 per violation under the ordinance.

This is one of the stricter rules in Altadena's municipal code. If you are unsure whether your situation complies, it is worth checking with the city before proceeding.

The Bottom Line

Altadena is tougher than many cities when it comes to rental property rules. Out of the 2 rules covered here, 2 are rated strict. If you are a homeowner, renter, or business owner in Altadena, take the time to understand these requirements before they become a problem. Most violations come with fines, and some repeat violations can escalate.

These rules come from Altadena's publicly available municipal code. For complete penalty schedules, exemption details, and answers to common questions, see the individual ordinance pages throughout this guide.