"Rented residence" means premises rented and occupied by the claimant as his or her principal place of residence during the calendar year for which assistance is claimed. The term "rented residence" shall not include:
For the purposes of this section, the term "premises" means a house or a dwelling unit used to provide living accommodations in a building or structure and the land incidental thereto, but does not include land only, except in the case where the dwelling unit is a mobilehome subject to the license fee imposed by Part 5 (commencing with Section 10701) of this division. "Rented residence" includes a dwelling unit which is a mobilehome subject to the license fee imposed by Part 5 (commencing with Section 10701) of this division owned by the claimant and located on land which is owned or rented by such claimant.
Ca. Rev. and Tax. Code § 20509