Ontario distinguishes between hosted and non-hosted STRs and may cap annual rental nights for non-hosted whole-home rentals. Operators must track bookings and retain records for city review.
California cities increasingly distinguish between hosted short-term rentals (owner or operator on-site during the guest stay) and non-hosted whole-home STRs, with tighter rules on the latter. Ontario's STR program may apply an annual night cap to non-hosted whole-home rentals while leaving hosted stays uncapped or counted separately. Caps in comparable Inland Empire cities commonly range between 90 and 180 rental nights per calendar year. Operators must keep accurate booking records, retain platform reports, and be prepared to submit usage summaries to the Planning Division on request. Exceeding an applicable cap can trigger permit suspension, fines, and zoning enforcement. Confirm the current cap for your zoning district and operator type with Ontario Planning at (909) 395-2000 before listing, especially because STR rules in Ontario are updated periodically.
Contact your local code enforcement office for specific penalty information.
Other ordinances people look up for this city. Green dot = verified primary-source excerpt.
Ontario, CA
Outdoor music is regulated under OMC Title 5 Chapter 29 and the special-event permit process. Venues and events with amplified sound need a city permit; resi...
Ontario, CA
Aircraft noise from Ontario International Airport (ONT) is regulated by the FAA, not the city. ONT runs an FAA Part 150 noise compatibility program; federal ...
Ontario, CA
Ontario requires a building permit for masonry walls and any fence over 7 feet under the California Building Code. Retaining walls over 4 feet also require p...
Ontario, CA
Ontario fence requirements include zoning-based heights, setbacks, sight triangles, buffer walls on industrial edges, and CBC structural standards. Pool, ret...
Ontario, CA
Ontario limits residential fence heights under the Development Code. Typical maximums are 6 feet rear/side, 3 feet front, and 42 inches in sight-distance tri...
Ontario, CA
Ontario requires dogs to be leashed off-property under OMC Title 6. Maximum leash length is 6 feet, with owner control required in all public spaces except d...
Side-by-side rule comparisons with other cities in San Bernardino County.
See how other cities in San Bernardino County handle night caps.
See how Ontario's night caps rules stack up against other locations.
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