Unincorporated Los Angeles County, CA — landlord and rental rules

Los Angeles County's RSTPO limits annual increases for fully covered rental units in unincorporated areas; the published general-unit ceiling for 1 July 2026 through 30 June 2027 is 1.919%, with separate certified-small-landlord and luxury-unit rates.

Full rent stabilization generally requires an unincorporated-area property with at least two rental units and an initial certificate of occupancy on or before 1 February 1995. Other rentals may receive just-cause protection without the rent cap.

This rule belongs only to unincorporated Los Angeles County. The certified-small-landlord and luxury rates differ from the general ceiling, so confirm the registered category before modelling an increase.

Annual cap

1.9%

Unit counts

2+ units

Construction

Built before 1996

In effect since 2020-04-01.

The Tenant Protection Act caps annual rent increases at 5% plus CPI, with a hard ceiling of 10%, on housing built more than 15 years ago.

The 15-year window rolls forward, so a building drifts into coverage with age rather than being fixed by its construction date at purchase.

Annual cap

10%

Construction

Built before 2011

In effect since 2020-01-01.

Costa-Hawkins exempts post-1995 construction and single-family homes and condominiums from *local* rent control, and preserves the landlord's right to reset rent to market on vacancy.

It does not help at the affordable end, because affordable stock is old stock: the buildings a small investor can actually buy are usually the ones Costa-Hawkins does not exempt.

Vacancy decontrol

Yes — rent resets on vacancy

Construction

Built after 1995

Most residential rentals in unincorporated Los Angeles County receive the RSTPO's enumerated just-cause protections, including units that are not fully rent stabilized.

Just-cause coverage is broader than the two-or-more-unit rent cap. Confirm the address is unincorporated and its registry classification; shared-owner facilities and other stated exemptions can remain outside coverage.

No-fault terminations can require relocation assistance. An incorporated-city address in Los Angeles County does not inherit this ordinance.

Unit counts

1+ units

In effect since 2020-04-01.

Owners of fully covered and just-cause-only units must register annually in the Los Angeles County Rent Registry and pay the applicable fee.

The registry covers both fully covered and just-cause-only RSTPO units in unincorporated areas.

Search by address or APN and verify the unit's classification. A clean result for an incorporated city says nothing because that city is outside this registry.

Unit counts

1+ units

FAIR Plan policies are up 139% since 2021, habitability claims are now commonly excluded, and earthquake cover is excluded from every standard policy.

Get a bindable quote before removing contingencies. An insurance assumption carried over from another state is the single largest silent error in a California pro forma.

Fair plan increase since2021

139%