Santa Clara County, CA Zoning Overlays & Bonuses: Density Bonus Law (2026)
Key Facts
- Governing law
- Cal. Gov. Code §§ 65915-65918
- Applies to
- unincorporated area only
- County mechanism
- reduced minimum lot size/area
- Ordinance
- Zoning Ordinance § 4.20.030
Summary
Unincorporated Santa Clara County processes density bonus requests under state law, reducing minimum lot size or lot-area-per-unit standards for affordable multi-family housing developments that qualify under California's density bonus statute.
Applicants for housing development proposals may be eligible for a density bonus or other incentives to produce and maintain housing affordable to low and very low income households pursuant to the provisions and requirements of California Government Code Sections 65915 through 65918. Other incentives, such as reductions in standards, parking requirements, mixed use development, or other concessions which effectively reduce the cost of housing units targeted for low and very low income housing may also be provided. For purposes of implementing this provision of the zoning ordinance as part of a subdivision or other housing development proposal, specific instructions and procedures are contained within the pertinent sections of Government Code Sections 65915 through 65918, as amended.B.Calculations. The number of additional lots or dwelling units permitted by means of a density bonus allocation shall be achieved by making the appropriate and commensurate reduction in the applicable standards or regulations establishing minimum lot size or minimum lot area per dwelling unit for multi-family zoning districts. (Ord. No. NS-1200.344, § 1, 6-10-14)
Official source re-checked September 7, 2026: no newer edition of the code had been published (publisher’s edition: Code of Ordinances: Supplement 65).
Full Breakdown
The county's zoning ordinance implements the state Density Bonus Law (Gov. Code §§ 65915-65918) rather than creating its own program: applicants proposing affordable housing for low- and very-low-income households may receive additional units and other incentives such as reduced parking or mixed-use flexibility. The county's own mechanism is the calculation method, the bonus is delivered by reducing the applicable minimum lot size or minimum lot area per dwelling unit for multi-family zoning districts. This applies only in the unincorporated area; San Jose, Palo Alto, and the other 13 cities each run their own density bonus procedures under their own codes.
Violations & Fines
Density bonus units approved without recorded affordability covenants, or built beyond the state-calculated bonus allowance, can be denied final occupancy, required to convert to market-rate units, or subject to permit revocation under Gov. Code § 65915 and County enforcement.
Frequently Asked Questions
Does Santa Clara County run its own density bonus program?
Does this apply inside San Jose or Palo Alto?
Sources & Official References
Other rules in Santa Clara County
California rules heatmap·Compare Santa Clara County to another location·View the California zoning overlays & bonuses overview
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