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.
Under Rialto Code Title 18 (Zoning), a home occupation is permitted only as an accessory use to a primary residential use. Standard conditions in California home-occupation ordinances and reflected in Rialto's zoning chapter require: (1) the occupation is conducted by residents of the dwelling, with limits on non-resident employees; (2) no alteration of the dwelling that changes its residential character; (3) no outdoor storage of materials, stock, or equipment; (4) no display or signage visible from the public right-of-way (see Ch. 18.78 Sign Regulations); and (5) no generation of noise, dust, odor, vibration, or traffic beyond normal residential levels. A Rialto business license under RMC Ch. 5.04 is required regardless of home-office status, and a separate home-occupation clearance from Planning is typically required prior to business-license issuance. Industrial, automotive repair, welding, and similar uses are not permitted as home occupations and must locate in commercial or industrial zones.
Operating a home business without a Rialto business license or home-occupation permit is a Title 5 violation; zoning violations under Title 18 are enforced by Community Compliance and may be cited as municipal-code infractions with daily-recurring fines and abatement orders.
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