Skip to main content
CityRuleLookup

Rialto, CA Zoning Overlays & Bonuses: Density Bonus Law (2026)

Few Restrictions
Compiled from the official code textEditor Martyn O'NeillLast verified September 2026

Key Facts

Governing chapter
RMC Ch. 18.101
Minimum project size
5+ dwelling units
Base affordability trigger
10% lower income units
Affordability covenant term
55 years minimum
Maximum tiered incentives
Up to 4, plus height bonus near transit

Summary

Rialto must grant a density bonus and development incentives to any housing project of five or more units that sets aside a state-specified share of affordable, senior, veteran, foster-youth or homeless units, under RMC Chapter 18.101, which implements state density bonus law locally.

A.Application. Any person that desires a density bonus must make an application on a form approved by the director at the time of submitting an entitlement application for the housing development for which a density bonus is requested. The density bonus provided by this chapter only applies to housing developments consisting of five or more dwelling units.B.Incentives and Concessions. When an applicant seeks a density bonus for a housing development or for the donation of land for housing within the city, the city must provide the applicant incentives or concessions for the production of housing units and child care facilities as provided in this chapter.

View official code

Official source re-checked September 7, 2026: no newer edition of the code had been published (publisher’s edition: Code of Ordinances: Supplement 39).

Full Breakdown

020 sets Rialto's general density bonus provisions. An applicant must apply on a director-approved form when submitting the entitlement application, and the bonus only applies to housing developments of five or more units. 050, when a developer commits to at least: ten percent of units for lower income households, five percent for very low income households, ten percent in a common interest development for moderate income households, a senior citizen housing development, ten percent for transitional foster youth, ten percent for disabled veterans, ten percent for homeless persons, twenty percent of student housing units for lower income students, or one hundred percent lower/moderate income units.

Continued affordability must run fifty-five years, or longer if a financing program requires it, and the city requires an equity-sharing agreement for for-sale units. 040 sets tiered incentives: one for the ten/five/ten percent tier, two for twenty/ten/twenty percent, three for thirty/fifteen/thirty percent, and four incentives plus up to a three-story or thirty-three-foot height bonus for one-hundred-percent-affordable projects near a major transit stop. 040(C).

Violations & Fines

This is a benefit program, not a prohibition; the city has no discretion to deny a qualifying density bonus, incentive or concession absent one of the narrow written findings in Section 18.101.040(C) or 18.101.050(B), such as a specific adverse public-health, safety, or historic-resource impact with no feasible mitigation, or conflict with state or federal law.

Frequently Asked Questions

How many affordable units trigger a density bonus in Rialto?
RMC Section 18.101.020(C) sets the base tiers: ten percent of units for lower income households, five percent for very low income households, or ten percent for moderate income households in a common interest development, among several other qualifying categories.
How long must the affordable units stay affordable?
Section 18.101.020(E)(2) requires rental units that qualified the project for a density bonus to remain affordable for fifty-five years, or longer if required by a construction or mortgage financing assistance program, with resale restrictions on for-sale units for the same period.
Can Rialto deny a density bonus incentive I qualify for?
Only in limited circumstances. Section 18.101.040(C) requires the planning commission or city council to grant the requested incentive unless it makes a written finding, based on substantial evidence, of a specific adverse impact on public health, safety or a historic resource with no feasible mitigation, or that granting it would violate state or federal law.

Sources & Official References

Other rules in Rialto

All Rialto rules

California rules heatmap·Compare Rialto to another location·View the California zoning overlays & bonuses overview

Get notified when Density Bonus Law in Rialto, CA changes

We'll email you the moment we detect a change in the code. No spam, unsubscribe anytime.

We'll never sell or share your email. One-click unsubscribe in every email.

See something wrong?

Help us keep this page accurate. If you notice an error or outdated information, let us know.

Density Bonus Law in Nearby Cities

How other cities in San Bernardino County handle density bonus law.

Rancho Cucamonga, CA
Some Restrictions
Victorville, CA
Some Restrictions
Chino, CA
Some Restrictions