Zoning Restrictions: Ontario vs Rialto
How do zoning restrictions rules compare between Ontario, CA and Rialto, CA?
Ontario and Rialto have similar restriction levels.
Ontario, CA
San Bernardino County
Ontario allows home-based businesses as home occupations under Development Code Title 9 with a home occupation permit. Work must be inside the home by residents only, with no neighborhood impact.
View full Ontario rules →Rialto, CA
San Bernardino County
Rialto Municipal Code Title 18 (Zoning) governs home occupations as accessory uses to a dwelling. A home occupation permit is required, and the use must be clearly incidental to residential use, conducted entirely within the dwelling, and produce no external evidence of business activity. A Rialto business license under Title 5 (Business Licenses and Regulations, Ch. 5.04) is also required for any person conducting business in the city.
View full Rialto rules →Key Facts Comparison
| Fact | Ontario | Rialto |
|---|---|---|
| Permit | Home occupation permit required | - |
| Employees | Residents of the home only | - |
| Outdoor activity | Prohibited | - |
| Signage | Generally prohibited | - |
| Impact test | No change to residential character | - |
| Zoning code | - | RMC Title 18 (Zoning) |
| Business license | - | Required under RMC Title 5, Ch. 5.04 |
| Outdoor storage | - | Prohibited for home occupations |
| Non-resident employees | - | Limited; verify with Planning |
| Enforcement | - | Rialto Community Compliance Division |
Highlighted rows indicate differences between cities.
Ontario FAQ
Can I run a small bookkeeping business from my Ontario home?
Yes. A home office with no clients coming to the house generally qualifies as a home occupation as long as you hold a business license and home occupation permit.
Can I hire an outside employee to work in my home office?
Usually no. Ontario home occupation rules limit workers to members of the household to protect the residential character of the neighborhood.
Rialto FAQ
Do I need a business license for a home-based business in Rialto?
Yes. RMC Title 5 (Ch. 5.04) requires a Rialto business license for any person engaging in business within the city, including home-based businesses. A home-occupation clearance from Planning under Title 18 is also typically required.
Can I have employees come to my home office?
California home-occupation ordinances, including Rialto's Title 18 zoning standards, limit non-resident employees on-site. Confirm the current employee limit with Rialto Planning before hiring on-site staff.
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