California Code, Health and Safety Code - HSC § 18551.1

(a) Any mobilehome park, constructed on or after January 1, 1982, may be constructed in a manner that will enable manufactured homes, mobilehomes, and multiunit manufactured housing sited in the park to be placed upon a foundation system, and manufactured homes, mobilehomes, and multiunit manufactured housing sited in the park may be placed upon foundation systems, subject to the requirements of Section 18551.

(b) Notwithstanding subdivision (a), any manufactured home, mobilehome, or multiunit manufactured housing originally sited on or after January 1, 1985, in a mobilehome park constructed prior to January 1, 1982, may be placed upon a foundation system, subject to the requirements of Section 18551.

(c) Notwithstanding subdivisions (a) and (b), any manufactured home, mobilehome, or multiunit manufactured housing sited in a mobilehome park which is converted, or in the process of being converted, to resident ownership on or after January 1, 1992, may be placed on a foundation system, subject to the requirements of Section 18551, and with the approval of the ownership of the park.

(d) With respect to any manufactured home, mobilehome, or multiunit manufactured home sited in a mobilehome park under subdivision (a), (b), or (c), no single structure shall exceed two stories in height.

(e) Notwithstanding subdivisions (a) and (b), the installation of a manufactured home, mobilehome, or multiunit manufactured housing within a mobilehome park pursuant to Section 18551 shall be subject to prior written approval by the ownership of the mobilehome park.

(f) The number of dwelling units per structure for any manufactured home or mobilehome consisting of two or more dwelling units, or multiunit manufactured housing, sited in a mobilehome park on or after January 1, 2003, shall conform to a zone designation or conditional use permit that currently applies to the park or an amended or new zone designation or conditional use permit that is additionally granted to the park.