The California operator's compliance map

Operating California rental housing means running a compliance stack, not a single rulebook. The floor is AB 1482: on covered units, rent increases are capped at 5% plus regional CPI (never more than 10%) and, after 12 months of tenancy, terminations require just cause — either at-fault, or no-fault with relocation assistance. On top of that floor, dozens of cities layer their own rent-stabilization ordinances with stricter caps, rent registries, buyout regulation and heavier relocation schedules; where a local ordinance validly covers a unit, the stricter rule controls (see local ordinances vs state law).

Two more layers complete the map. Tenant-selection and operations rules — source-of-income protection for voucher holders, habitability duties, security-deposit limits — govern the day-to-day. And the building itself carries obligations: seismic-retrofit mandates, habitability-driven capital work, and, if you ever exit the rental business, the Ellis Act's formal withdrawal process with its multi-year re-rental constraints. Operators get in trouble at the seams between layers — this page maps them.

Build a unit-by-unit regime table before setting any renewal increase. For each unit: is it covered by a local RSO (check the ordinance's construction cut-off and unit-type rules); is it covered by AB 1482 (15-year rolling new-construction exemption; separately, single-family homes and condos are exempt only if properly noticed and not owned by a corporation or REIT); and what does Costa-Hawkins (verbatim) say about vacancy resets and which units a city may control. The annual increase you may lawfully take is the output of that table, not a portfolio-wide number. Just-cause compliance rides on the same table: covered units need cause, correct notice language, and — for no-fault terminations — relocation assistance at the state or (often higher) local rate. The playbook is in just-cause eviction compliance.

• Underwriting watch-outs:
• The AB 1482 single-family exemption fails without the statutory notice in the lease and fails entirely for corporate/REIT owners — audit your leases; an invalid exemption means every past over-cap increase is exposure.
• Local registries with annual filings (and penalties for lapses) are spreading — a missed registration can block rent increases or evictions in some cities.
• CPI changes annually by region: recalculate the cap each year rather than reusing last year's percentage.

Substantial-remodel termination is the most scrutinized move in the operator playbook. AB 1482 (as tightened by later amendments) requires work that cannot be done safely with the tenant in place, permits in hand or described, specified notice content, and genuine intent — cosmetic renovation does not qualify, and cities and the Attorney General have pursued operators who used remodel notices as vacancy tools. Treat it as a documented capital project with a legal file, not an eviction technique: see substantial-remodel evictions. On tenant selection, California bars source-of-income discrimination: a voucher is lawful income, "No Section 8" advertising is unlawful, and income-ratio screens must be applied to the tenant's share of rent, not the full rent (see vouchers and source of income; program mechanics at 24 CFR Part 982).

Habitability is the quiet layer under everything: the implied warranty plus Civil Code standards (heat, plumbing, weatherproofing, vermin) enforced through repair-and-deduct, code enforcement, and rent-withholding defenses. A habitability problem contaminates every other action — it is the standard defense to any eviction and the standard basis for rent-board petitions.

• Underwriting watch-outs:
• Buyout agreements are regulated in many RSO cities — disclosure forms, rescission windows, filing requirements. An undocumented "cash for keys" deal can be unwound.
• Voucher inspections (HQS/NSPIRE) put a compliance clock on unit condition — failed items abate the housing-authority payment, not the tenant's obligation to exist; budget the turnaround.
• Track local relocation schedules separately from the state's one-month baseline — big-city no-fault relocation can run to five figures per unit.

The building carries mandates of its own. Soft-story wood-frame retrofit ordinances in Los Angeles, San Francisco, Oakland, Santa Monica and a growing list of cities set hard compliance deadlines, and non-ductile concrete programs follow behind; pass-through rules for retrofit costs vary by rent ordinance. Get the retrofit status, deadline and cost-recovery path into the asset plan — the mechanics are in seismic retrofit and soft story. Balcony and elevated-element inspection laws (SB 721 for multifamily, named in prose) add recurring inspection and repair cycles.

If the numbers stop working, the Ellis Act is the lawful exit from the rental business — but it is an exit, not a repositioning tool. Withdrawal requires noticing all units (120 days, extended to one year for senior/disabled tenants), relocation payments where local law provides, and it triggers re-rental constraints: re-offer rights to displaced tenants, rent restrictions on re-rented units for years after withdrawal, and local replacement obligations on redevelopment. Read Ellis Act withdrawal before treating it as an option — cities audit Ellis properties for sham withdrawals.

• Underwriting watch-outs:
• Retrofit deadlines are enforcement events: missed deadlines mean citations, placarding risk, and insurance and lender problems — treat the ordinance date as senior to the capital-plan date.
• Ellis constraints run with the land in key respects — a buyer inherits the re-rental restrictions, which caps the exit universe after withdrawal.
• Demolishing withdrawn units for new housing pulls in the Housing Crisis Act's replacement and right-of-return rules — the Ellis exit does not erase redevelopment obligations.