Cal. Civ. Code § 4100 : CALIFORNIA CIVIL CODE — GENERAL PROVISIONS — COMMON INTEREST DEVELOPMENTS — GENERAL PROVISIONS — DEFINITIONS — Common interest development TEXT PDF "Common interest development" means any of the following: (a) A community apartment project. (b) A condominium project. (c) A planned development. (d) A stock cooperative. Ca. Civ. Code § 4100 Added by Stats 2012 ch 180 (AB 805),s 2, eff. 1/1/2013, op. 1/1/2014.