City Watch
Short-term rental rules in Ontario, CA
How Ontario regulates short-term rentals: the rules that apply, their sources, and pending changes.
Rules here limit which homes may operate as short-term rentals, how many, where, or for how many nights a year.
- primary-residence-only STR permit (vacation rentals of non-primary-residence dwellings prohibited)
- un-hosted stays capped at 90 days per calendar year
- STR permit required with annual inspection, business license and permit number on listings
- residential/mixed-use zone list; STR not permitted in any other zone
Based on: Ontario Development Code §5.03.363 (Short Term Rentals), added by ordinance adopted Dec 20, 2022 (introduced Dec 6
Summary of the rule
A short-term rental permit shall only be issued to authorize hosted stays and un-hosted stays. Vacation rentals are prohibited.
Last reviewed Oct 22, 2026 · Sources · Report an error
Pending legislation
Monitoring Ontario · system last checked Oct 25, 2026
Owners in Ontario
Following Ontario adds it to the Followed cities list on your ASTRO dashboard, linked to its city page.
Add a home to the ASTRO registry and confirm ownership of it.
City Watch tracks changes from public sources — council agendas, state bills, local news — not a complete legal compendium.
A city permit is not the whole picture — HOA, condominium, deed, or lease rules may be stricter.
City Watch provides good-faith summaries of publicly available information as of the review date shown. Rules, enforcement, and permit availability can change, and summaries may contain errors or omissions. Ratings describe the general regulatory environment; they do not establish whether a particular property or stay is permitted. This is general information, not legal advice. Before buying, listing, or hosting, verify applicable requirements with the responsible authorities and review any HOA, condominium, deed, or lease restrictions.