Cal. Gov't Code § 65914.5
(a) The Legislature finds and declares each of the following:
(b) Except as provided in subdivision (c), notwithstanding any law, including any inconsistent provision of a local agency’s general plan, ordinances, or regulations, the otherwise applicable time for the expiration, effectuation, or utilization of a housing entitlement that is within the scope of the timeframes specified in paragraphs (1) and (2) is extended by 18 months. For the purposes of this section, housing entitlements that are extended are entitlements where both of the following apply:
(2) It will expire prior to December 31, 2021.
The otherwise applicable time for the utilization of a housing entitlement provided by this section includes any requirement to request the issuance of a building permit within a specified period of time.
(d) For purposes of this section, the following terms have the following meanings:
(1) “Housing entitlement” means:
(2) For the purposes of this section, a housing entitlement does not include any of the following:
(3) “Housing development project” means any of the following:
(C) A mixed-use development in which at least two-thirds of the square footage of the development is designated for residential use. Both of the following apply for the purposes of calculating the square footage usage of a development for purposes of this subparagraph: