STR rules · verified 1mo ago
Short-term rental rules in Ontario, CA
The City of Ontario (San Bernardino County, NOT to be confused with Ontario, Canada or unincorporated San Bernardino County's STR regime at str.sbcounty.gov) regulates short-term rentals through Title 3 Chapter 6 of the Ontario Municipal Code. Ontario PERMITS both hosted and un-hosted short-term rentals, including whole-home vacation rentals, subject to a Short-Term Rental Permit + Business License. A Short-Term Rental is defined as a dwelling unit (or portion thereof) rented for not more than 30 consecutive days. Application requires a site plan with parking layout and a floor plan of areas intended for STR use, submitted via Citizen Portal Access. Operating an STR without both a valid STR Permit and a Business License is prohibited and triggers code enforcement. Ontario is one of the more STR-friendly Inland Empire cities relative to Burbank, Glendale, or Pasadena.
What's behind the sign-in
- Registration fees — initial + annual renewal cost, per permit type
- Permit caps + waitlists — exact cap values, current waitlist counts
- Owner-occupancy rules — days/year requirement, permit-class splits
- Zoning carve-outs — which districts allow / disallow STR
- Tax stack — TOT, hotel, county + state layers
- Stay limits — min/max nightly, max nights/year
- Operational requirements — parking, insurance, fire inspection, neighbor notice
- Penalties — per-night fines, revocation thresholds
- City-specific gotchas — HOA carve-outs, pending legislation, recent court rulings
- Refresh on demand — re-run the agentic pipeline against the city's current ordinance
Frequently asked
Are short-term rentals legal in Ontario, CA?
Ontario is currently permitted for short-term rentals. Active permits with clear rules and no recent ordinance tightening — stable for new STR investment. For the actual fees, caps, owner-occupancy rules, and city-specific gotchas, sign in.
Do I need a permit to run an Airbnb in Ontario?
Almost certainly yes — almost every U.S. city now requires a short-term rental permit, vacation rental permit, or transient lodging permit before you can legally list. The specifics for Ontario (cost, renewal cycle, required documents) are behind sign-in. You can also read the source ordinance directly: https://www.ontarioca.gov/government/financial-services/business-license/short-term-rental-permits.
What happens if I rent without a permit in Ontario?
Most cities charge per-night fines (a few hundred to a few thousand dollars per violation), escalating to cease-and-desist letters and platform delisting on repeat. Airbnb and Vrbo now share permit-validation feeds with most major cities, so unpermitted listings get blocked at the platform level. Sign in to see the specific penalty schedule for Ontario.
How current is this data for Ontario?
This record was verified 1mo ago against the city's published ordinance (.gov or the city's official municipal-code publisher). Cached cities re-verify on a cadence — daily for cities under active legislation, weekly otherwise. Signed-in users can hit Refresh on any city to force a fresh pull. If you're underwriting a deal, always confirm against the city's code-enforcement office before closing.
Can my HOA or condo association ban STRs even if Ontario allows them?
Yes. City permits authorize you under municipal law, but your HOA, condo association, or co-op board sets contractual rules that override the city for your unit. Many HOAs adopted blanket STR bans between 2018 and 2024 in response to neighbor complaints. Read the CC&Rs, bylaws, and rental addendums before you buy with an STR plan — the city saying yes does not mean your building says yes.