Cal. Gov. Code § 65917

In enacting this chapter it is the intent of the Legislature that the density bonus or other incentives offered by the city, county, or city and county pursuant to this chapter shall contribute significantly to the economic feasibility of lower income housing in proposed housing developments. In the absence of an agreement by a developer in accordance with Section 65915, a locality shall not offer a density bonus or any other incentive that would undermine the intent of this chapter.