Cal. Gov't Code § 65917.5
(a) As used in this section, the following terms shall have the following meanings:
(2) “Density bonus” means a floor area ratio bonus over the otherwise maximum allowable density permitted under the applicable zoning ordinance and land use elements of the general plan of a city, including a charter city, city and county, or county of:
(B) A maximum of 10 square feet of floor area for each one square foot of floor area contained in the child care facility for new structures.
For purposes of calculating the density bonus under this section, both indoor and outdoor square footage requirements for the child care facility as set forth in applicable state child care licensing requirements shall be included in the floor area of the child care facility.