A homeowner shall not be charged a fee based on the number of members in his or her immediate family. As used in this section, the “immediate family” shall be limited to the homeowner, his or her spouse, their parents, their children, and their grandchildren under 18 years of age.
Source:
Section 798.35, https://leginfo.legislature.ca.gov/faces/codes_displaySection.xhtml?lawCode=CIV§ionNum=798.35..