Samimi CRE Advisors

    County Rent Stabilization & Tenant Protections Ordinance

    Unincorporated Los Angeles County rent control: what apartment owners need to know

    LA County's rent stabilization ordinance for unincorporated areas: which properties are covered, allowable annual increases, just-cause rules, and how to confirm whether an address is inside a city or unincorporated county.

    Quick answer

    Unincorporated areas of Los Angeles County — including places with Los Angeles mailing addresses that are not inside any city — are governed by the County's own rent stabilization and tenant protections ordinance, not by City of LA RSO. Coverage generally applies to qualifying multifamily built before February 1, 1995. Verify jurisdiction for the specific property first.

    What is covered

    • Qualifying multifamily rental units in unincorporated LA County areas, generally with a certificate of occupancy before February 1, 1995
    • Just-cause protections for covered tenancies under the County ordinance
    • Registration and notice requirements administered by the County

    Common exemptions

    • Properties inside any incorporated city — those follow the city's own rules
    • Newer construction outside the coverage window
    • Property types exempt under Costa-Hawkins

    How rent increases work in Unincorporated Los Angeles County

    The County publishes an allowable annual increase tied to a CPI-based formula with a ceiling. Confirm the current published figure and notice period with the County before serving notice.

    Ending a tenancy

    A recognized cause is required to terminate a covered tenancy, and no-fault causes carry relocation assistance obligations under the County ordinance.

    What it means when you buy or sell

    This is the most commonly misidentified jurisdiction in LA County multifamily. Addresses in areas like Westmont, West Athens, Florence-Firestone, East LA, Willowbrook, and Ladera Heights carry Los Angeles-area mailing addresses but are not in any city, so City of LA RSO and Measure ULA do not apply and County rules do. Getting jurisdiction wrong at the underwriting stage invalidates the entire rent-growth model.

    Verify for the specific property

    This page is a general reference, not legal advice. Rent regulation rules, allowable increase percentages, and exemptions change — and coverage depends on the individual property's construction date, permit history, and tenancy. Always verify for the specific property with the governing agency or qualified counsel before underwriting or noticing an increase.

    Official source: LA County Department of Consumer & Business Affairs

    Unincorporated Los Angeles County rent control FAQ

    How do I know if my property is in unincorporated LA County?

    A mailing address is not a reliable indicator. Use the County's property locator or the assessor parcel record to confirm whether the parcel sits inside an incorporated city or in unincorporated territory. This determines which rent regulation, transfer tax, and inspection regime applies.

    Does Measure ULA apply in unincorporated LA County?

    No. Measure ULA is a City of Los Angeles transfer tax and applies only to property sales within City of LA boundaries. Unincorporated county parcels are not subject to it. Confirm jurisdiction for the specific parcel before modeling net proceeds.

    Not sure how the rules price your building?

    Cameron underwrites regulated Unincorporated Los Angeles County product every week and will tell you what a real buyer pays for it — including the realistic turnover timeline, not a same-day mark-to-market fantasy.

    Get a free valuation

    Cameron Samimi · +1-310-259-7556

    Other LA County jurisdictions