“Property” means and includes manufactured homes subject to taxation under Part 13 (commencing with Section 5800) and real property, other than the following:
(a) Fixtures that are normally valued as a separate appraisal unit from a structure.
(b) Newly created taxable possessory interests, established by month-to-month agreements in publicly owned real property, having a full cash value of fifty thousand dollars ($50,000) or less.