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

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

Key Facts

State law
Gov Code 65915
Maximum bonus
Up to 100 percent
Local code
BMC Title 23
Recent expansion
AB 1287 (2023)
Appeal body
Zoning Adjustments Board

Summary

Berkeley implements California Government Code 65915 density bonus, granting up to 50 percent additional units and concessions for projects providing affordable housing, with local procedures in BMC Title 23.

65915. (a) (1) When an applicant seeks a density bonus for a housing development within, or for the donation of land for housing within, the jurisdiction of a city, county, or city and county, that local government shall comply with this section. A city, county, or city and county shall adopt an ordinance that specifies how compliance with this section will be implemented. Except as otherwise provided in subdivision (s), failure to adopt an ordinance shall not relieve a city, county, or city and county from complying with this section.

Source: Berkeley PlanningView official code

Full Breakdown

The state Density Bonus Law, codified at California Government Code Section 65915, requires Berkeley to grant up to 50 percent additional units, fee waivers, and parking reductions to projects that include qualifying affordable housing. Berkeley implements the law through BMC Title 23 zoning procedures and the Affordable Housing Mitigation Fee program. Recent state amendments such as AB 1287 expanded the bonus to 100 percent for very-low-income projects. Berkeley Planning processes density-bonus applications concurrently with use permits and design review, and disputes over concessions can be appealed to the Zoning Adjustments Board and ultimately to court.

Violations & Fines

Cities that improperly deny density-bonus concessions face state Housing Accountability Act lawsuits and potential court-ordered approval plus attorney fee awards to applicants.

Frequently Asked Questions

Can Berkeley reject a density-bonus project?
Only on narrow grounds. The Housing Accountability Act and state density-bonus law strongly limit denials of code-compliant affordable projects, with attorney fees awardable to applicants.
Does the bonus reduce parking requirements?
Yes. State law mandates reduced parking ratios for density-bonus projects, often as low as 0.5 spaces per unit near transit.

Sources & Official References

Other rules in Berkeley

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