Santa Clara, CA Zoning Overlays & Bonuses: Density Bonus Law (2026)
Key Facts
- Minimum project size
- 5+ dwelling units, incl. mixed-use
- Lower-income entry bonus
- 10% units = 20% density bonus
- Very low-income entry bonus
- 5% units = 20% density bonus
- Senior housing bonus
- Flat 20% bonus, or unlimited density if 100% senior
- 100% affordable projects
- 80% density bonus
- Near major transit stop
- No maximum density control at all
- Commercial developer bonus
- Up to 20% more height/FAR/intensity
Summary
Santa Clara grants density bonuses of up to 50% under Zoning Code Chapter 18.64 to housing developments that set aside affordable units, but only projects of five or more dwelling units qualify. The bonus scales with the share of low-, very low-, senior, or moderate-income units provided.
Minimum Project Size to Qualify for Density Bonus. The density bonus provided by this Chapter shall be available only to a housing development of five or more dwelling units, including mixed-use developments... The Council shall determine the amount of a density bonus allowed in a housing development in compliance with this Section. For the purposes of this Chapter, "density bonus" means a density increase over the otherwise maximum allowable residential density under the applicable General Plan Land Use designation and zone as of the date of application to the City.
Full Breakdown
64 of Santa Clara's Zoning Code implements the City's local density bonus program alongside Government Code Section 65915. 020(D), the bonus is available "only to a housing development of five or more dwelling units, including mixed-use developments," so single-family and small-lot projects do not qualify. 030 sets the bonus scale: a project reserving 10% of units for lower-income households earns a 20% density bonus, rising on Table 4-5 to a 50% bonus at 24% low-income units. Very low-income set-asides start at 5% of units for a 20% bonus and reach 50% at 15% of units (Table 4-6).
Senior citizen developments and qualifying mobile home parks get a flat 20% bonus, and a project restricting 100% of units to senior housing may build at any residential density compatible with neighboring uses. For-sale developments with 10% moderate-income units start at a 5% bonus, growing to 50% at 44% moderate-income units (Table 4-7). Projects that are 100% affordable (except a manager's unit) receive an 80% density bonus, and if the site sits within one-half mile of a major transit stop the City "shall not impose any maximum controls on density" at all.
020(E) also lets a commercial developer earn a development bonus, up to a 20% increase in allowable intensity, floor area ratio, or height, or a 20% parking reduction, by partnering with a housing developer to fund at least 30% low-income or 15% very low-income units, with the agreement reviewed and approved by the City and reported annually to the state Department of Housing and Community Development under Government Code Section 65400.
Violations & Fines
There is no fine schedule tied to Chapter 18.64 itself; the bonus is an entitlement, not a prohibition. The City's leverage is procedural: under Section 18.64.020(E)(6), if a commercial development bonus partner fails to start building the affordable units on the agreed timeline, "the City may withhold certificates of occupancy for the commercial development under construction until the developer has completed construction of the affordable units." Density bonus requests are processed under Section 18.64.090 and approved projects are locked in through a recorded density bonus agreement under Section 18.64.100, with continued affordability enforced under Section 18.64.070.
Frequently Asked Questions
How many affordable units does a Santa Clara project need for a density bonus?
What is the largest density bonus Santa Clara allows?
Can a commercial project in Santa Clara get a density-style bonus?
Does Santa Clara's density bonus reduce required affordable housing fees?
Sources & Official References
Other rules in Santa Clara
California rules heatmap·Compare Santa Clara to another location·View the California zoning overlays & bonuses overview
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Density Bonus Law in Nearby Cities
How other cities in Santa Clara County handle density bonus law.