California Revenue & Taxation Code
Cal. Rev. & Tax. Code § 104
Official textleginfo.legislature.ca.gov
“Real estate” or “real property” includes:
# (a)
The possession of, claim to, ownership of, or right to the possession of land.
# (b)
All mines, minerals, and quarries in the land, all standing timber whether or not belonging to the owner of the land, and all rights and privileges appertaining thereto.
# (c)
Improvements.
Source: view the official text