Samimi CRE Advisors

    Rent Stabilization Ordinance (RSO)

    City of Los Angeles rent control: what apartment owners need to know

    Does the LA Rent Stabilization Ordinance apply to your building? Coverage tests, exemptions, allowable increases, and what the RSO does to value when you sell. Verify for your specific property.

    Quick answer

    Most City of Los Angeles multifamily buildings with a certificate of occupancy issued before October 1, 1978 fall under the Rent Stabilization Ordinance, which caps annual rent increases and requires a just cause to end a tenancy. Newer buildings are generally governed instead by the statewide AB 1482 cap. Verify coverage for the specific property.

    What is covered

    • Multifamily rental units inside City of Los Angeles boundaries with a certificate of occupancy issued before October 1, 1978
    • Replacement units built on a site where RSO units were previously demolished, in many cases
    • Units in a covered building regardless of whether the current tenant has lived there for one year or twenty

    Common exemptions

    • Buildings first occupied on or after October 1, 1978 (these typically fall under AB 1482 instead)
    • Single-family homes and most condominiums, subject to Costa-Hawkins
    • Government-owned or subsidized units under separate regulatory agreements
    • Properties outside City of LA boundaries — an address with a 'Los Angeles' mailing city can sit in an unincorporated county area or a separate city with different rules

    How rent increases work in City of Los Angeles

    The RSO sets an allowable annual increase that the Los Angeles Housing Department publishes each regulatory year, with additional allowances in defined circumstances such as certain utility arrangements. The percentage changes and has been subject to freezes and phase-ins in recent years, so an owner should confirm the current allowable increase and required notice period before serving notice.

    Ending a tenancy

    Ending a tenancy in an RSO unit requires one of the legal causes enumerated in the ordinance, and several of those causes carry tenant relocation assistance obligations and filing requirements. Owner move-in and Ellis Act withdrawals follow their own specific procedures and timelines.

    What it means when you buy or sell

    RSO status is the single biggest driver of the gap between in-place rent and market rent on older LA product, and therefore of what a buyer will pay. Buyers underwrite the realistic pace of natural turnover, not a same-day mark-to-market. Mispricing that timeline is the most common reason an LA apartment deal retrades in escrow. Measure ULA transfer tax also applies to City of LA sales above its thresholds and should be modeled into net proceeds before the property is marketed.

    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: Los Angeles Housing Department

    City of Los Angeles rent control FAQ

    How do I know if my LA building is RSO?

    The controlling test is the date the certificate of occupancy was issued — generally before October 1, 1978 — and whether the property sits inside City of Los Angeles boundaries. The Los Angeles Housing Department maintains a property lookup, and the city's zoning information system will confirm jurisdiction. Verify for the specific property; a Los Angeles mailing address does not by itself mean City of LA jurisdiction.

    How much can I raise rent on an RSO unit?

    The Los Angeles Housing Department publishes an allowable annual increase for each regulatory year, and that figure has changed materially in recent years. Confirm the current published percentage, whether the tenancy is eligible for an increase this year, and the required notice period before serving any notice.

    Does RSO status lower what my building is worth?

    It changes how buyers underwrite, rather than simply discounting the asset. A well-located RSO building with deep loss-to-lease can command strong pricing because the upside is real — it just arrives over time through natural turnover. What destroys value is presenting an RSO building as if rents can be marked to market immediately; sophisticated buyers price that in and retrade when the story does not hold.

    Do I have to disclose RSO status when I sell?

    Buyers and their lenders will require the rent roll, tenancy start dates, and the property's regulatory status as part of due diligence, and material facts about the property must be disclosed. Assembling accurate tenancy and increase history before going to market is what keeps a deal from unwinding later.

    Not sure how the rules price your building?

    Cameron underwrites regulated City of Los Angeles 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