Eviction Laws in Ontario, California
Ontario is the Inland Empire’s gateway: Ontario International Airport and its air-cargo boom, the warehouse and distribution grid feeding it, Ontario Mills and the Toyota Arena entertainment draw, and — across the city’s southern half — Ontario Ranch, one of the largest active homebuilding programs in California, adding thousands of new houses a year. About 42% of households rent, roughly 22,600 renter households, at an average apartment rent of $2,460 (1BR ~$2,151, 2BR ~$2,610, 3BR ~$3,222), up 1.5% year-over-year, with 41% of stock leasing at $2,501–$3,000. The stock splits sharply: prewar-to-1980s product around downtown and the airport, and brand-new Ontario Ranch construction riding AB 1482’s 15-year new-construction exemption — making the C of O date the single most valuable data point on any Ontario rental. Legally, Ontario is a baseline city — no local rent control, no local just-cause ordinance — and the state framework, applied precisely, is the entire rulebook.
California evictions run through the unlawful detainer process in Superior Court (CCP § 1161). For nonpayment, you serve a written 3-Day Notice to Pay Rent or Quit — three court days, excluding weekends and judicial holidays — and the notice can demand rent only: no late fees, no utilities, no other charges, or it’s defective. If the tenancy has run 12 months or more and the property is AB 1482-covered, the termination must fit a just cause; no-fault grounds carry relocation assistance of one month’s rent. After the notice expires you file the UD complaint with the San Bernardino County Superior Court — Ontario sits in the county’s Rancho Cucamonga District, with the district courthouse on Haven Avenue serving the west valley — and the tenant has 10 days to respond in writing. An uncontested default can wrap in five to six weeks; contested cases typically run two to three months. Statewide rules ride along: deposits capped at one month’s rent (AB 12), 21-day return window, AB 2801 move-in/move-out/post-repair photos to preserve deductions, and the 2026 additions — working stove and refrigerator as habitability items (AB 628), electronic deposit returns for electronic payments (AB 414), and tightened proof-of-service rules for UD summonses (AB 747). Self-help — lockouts, utility shutoffs, removing doors — is prohibited under Civil Code § 789.3 at a minimum $100 per day in penalties.
Ontario — Local Rules That Affect Landlords
No local rent control, no local just-cause ordinance. Ontario layers nothing on top of state law — no rent board, no registry, no relocation schedule beyond AB 1482’s one month. The state framework, applied correctly, is the entire compliance file.
Two stocks, two AB 1482 postures. Older Ontario product — the downtown fourplexes, the 1970s–80s complexes — is fully covered: capped increases, just cause after 12 months. Ontario Ranch and other post-2011 construction rides the rolling 15-year new-construction exemption — uncapped until each building’s conversion date. Calendar every C of O: a 2012 build converts in 2027, and the last unrestricted increase belongs before that date.
The SFH exemption on the Ranch houses. New single-family rentals stay cap-exempt even past 15 years with individual (non-corporate-entity) ownership and the verbatim statutory exemption notice in the lease — but the build-to-rent communities operating under corporate ownership are covered the day their 15-year clocks expire. Know which kind of owner you are.
Airport-economy screening. Logistics and airport work runs through staffing agencies with seasonal peaks (verify the employer of record; weight income across the year), airline and cargo-carrier W-2s verify cleanly, and hospitality schedules flex. Screen every adult, one written standard, voucher holders included.
Move-outs leave property behind. High-turnover logistics tenancies make Ontario landlords frequent users of California’s abandoned-property procedure — the notice, the holding period, the $700 line, and the post-eviction rules are covered in the FAQ, because handling the left-behind couch wrong costs more than the couch.
SB County Superior Court — Where Ontario Landlords File
Ontario sits in the San Bernardino County Superior Court’s Rancho Cucamonga District — the district courthouse at 8303 Haven Avenue in Rancho Cucamonga serves the west valley’s civil matters, about ten minutes up Haven from the airport (confirm the current filing location for your case type on the court’s site, as the county assigns work among its district courthouses). The county also runs a Landlord/Tenant Assistance Program with bookable appointments for limited landlord-tenant filings, and walk-in self-help operates on the second floor of the Fontana courthouse nearby — free form help for landlords and tenants alike. The tenant has 10 days to respond in writing; after a response, the court mails both sides the trial date. First-paper filing fees follow the statewide schedule: about $240 for limited UDs demanding under $10,000 — most Ontario nonpayment cases — and $385–$435 for larger or unlimited claims; complaints are confidential for the first 60 days under CCP § 1161.2. If you prevail, the clerk issues a writ of possession to the San Bernardino County Sheriff’s civil division, which posts a 5-day notice to vacate before completing the lockout — typically one to two weeks after the writ. sanbernardino.courts.ca.gov hosts the district directory, the assistance-program appointment system, and forms.
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