Home Business in Rialto, CA: What Residents Actually Need to Know

If you live in Rialto or are thinking about moving there, home business are one of those things you probably won't think about until they affect you directly. Rialto has 6 specific rules on the books covering different aspects of home business, and some of them might surprise you.

Signage Rules

Rialto bans all on-site display and advertising for home occupations except a single non-illuminated nameplate no larger than one square foot. Advertising that identifies the home's street address is also prohibited, except in telephone directories and on business cards.

Key details: Maximum sign size: 1 square foot nameplate. Illumination: Prohibited - sign must be non-illuminated. Placement: Attached to a permanent structure; not in the front-yard setback. Street-address advertising: Prohibited except phone directories and business cards.

An unlawful sign violates the conditions of the home occupation permit and Chapter 5.68, an infraction carrying a 200 to 500 dollar fine per offense with each day a separate offense (RMC 5.68.170); the planning commission may also revoke the permit (RMC 5.68.150).

This is one of the stricter rules in Rialto's municipal code. If you are unsure whether your situation complies, it is worth checking with the city before proceeding.

Zoning Restrictions

Home occupations are permitted in every Rialto residential zone district with a permit (RMC 5.68.030), but the business must stay incidental to the residence: it may occupy no more than 25 percent of the home's habitable floor area and must be conducted entirely inside the dwelling.

Key details: Where allowed: All residential zone districts, with a home occupation permit. Maximum floor area: 25% of the dwelling's habitable square footage. Outdoor storage: Prohibited - all storage must be in enclosed structures. Prohibited examples: Auto repair, barber/beauty shops, firearms dealers, medical offices, welding.

Operating a non-permitted or prohibited use is an infraction with fines of 200 to 500 dollars per offense, each day counting as a separate offense (RMC 5.68.170). Nuisance-producing activity is subject to abatement, and the permit may be revoked (RMC 5.68.110(A)(17), 5.68.150).

Cottage Food Operations

California law bars Rialto from prohibiting cottage food operations in residential dwellings (Gov. Code 51035). Home food businesses register with San Bernardino County Environmental Health Services - Class A (direct sales) by registration, Class B (direct and indirect sales) by health permit - and also need City of Rialto planning approval.

Key details: State zoning protection: Cities cannot prohibit cottage food operations in homes (Gov. Code 51035). Sales caps: Class A $75,000 / Class B $150,000 gross annual sales, inflation-adjusted (HSC 113758). County fees (March 2020): Class A registration $184; Class B permit $251 (SB County DEHS). Local approval: Rialto home occupation permit plus county DEHS registration or permit.

Operating a cottage food business without DEHS registration or permit violates the California Retail Food Code, and operating without Rialto planning approval violates RMC Chapter 5.68, an infraction with fines of 200 to 500 dollars per day (RMC 5.68.170).

Customer Traffic Restrictions

A Rialto home occupation may not significantly increase neighborhood traffic, and more than eight patrons in any 24-hour period is conclusively deemed a violation. Only one non-resident employee or contractor may be on site at a time.

Key details: Patron limit: More than 8 patrons in 24 hours is conclusively a violation. On-site employees: Maximum 1 non-resident employee or contractor at a time. Bulk deliveries: 1 per week, 8 a.m.-5 p.m. Monday-Friday (couriers exempt). Commercial vehicles: One operator-owned vehicle up to 1.5-ton capacity.

Exceeding the patron, employee, or delivery limits violates Chapter 5.68 - an infraction punishable by 200 to 500 dollars per offense, each day a separate offense (RMC 5.68.170) - and is grounds for permit revocation by the planning commission (RMC 5.68.150).

Home Daycare

State law makes small (up to 8 children) and large (7 to 14 children) family daycare homes a residential use by right, and Rialto cannot impose a business license, fee, or tax on them. RMC 5.68.040(D) expressly exempts state-licensed child care from the city's home occupation permit requirement.

Key details: Small family daycare: 8 or fewer children - residential use by right (HSC 1596.78, 1597.45). Large family daycare: 7 to 14 children - residential use by right. Local fees: Rialto may not impose a business license, fee, or tax (HSC 1597.45). Rialto exemption: Licensed child care exempt from home occupation permit (RMC 5.68.040(D)).

Operating an unlicensed family daycare violates state licensing law (HSC 1596.70 et seq.), enforced by the California Department of Social Services. The city cannot penalize a duly licensed family daycare home through business license or home occupation requirements.

If you are coming from a city with tighter rules, you will find Rialto gives residents more flexibility on home daycare.

Home Occupation Permits

Rialto requires home-based businesses to obtain both a Home Occupation Permit from the Planning Division and a city business license. Under Rialto Municipal Code 5.68.040, no business license may be issued for a home occupation until a valid home occupation permit has been issued.

Key details: Home Occupation Permit application fee: $45.90 (Planning Division). Business license administration fee: $40.40 new / $25.90 renewal, plus $4.00 state fee. Ministerial review timeline: 15 days for uses listed in RMC 5.68.050. Permit expiration: Automatic after 6 months of discontinuance or when permittee moves.

Violating Chapter 5.68 is an infraction punishable by a fine of 200 to 500 dollars per offense, and each day a violation continues counts as a separate offense (RMC 5.68.170). The planning commission may also revoke or modify the permit after a noticed hearing (RMC 5.68.150).

The Bottom Line

Rialto's home business rules are a mixed bag. Some areas are strict, others are relaxed, and the details matter. The best approach is to check the specific rule that applies to your situation rather than assuming Rialto is broadly strict or permissive.

This guide is based on Rialto's current municipal code. Local rules can and do change, so check the individual ordinance pages for the latest details, penalties, and FAQs.