Gov. Code, § 65852.25

(a) No local agency shall enact or enforce any ordinance, regulation, or resolution that would prohibit the reconstruction, restoration, or rebuilding of a multifamily dwelling that is involuntarily damaged or destroyed by fire, other catastrophic event, or the public enemy.

(b) Notwithstanding subdivision (a), a local agency may prohibit the reconstruction, restoration, or rebuilding of a multifamily dwelling that is involuntarily damaged or destroyed by fire, other catastrophic event, or the public enemy, if the local agency determines that:

(1) The reconstruction, restoration, or rebuilding will be detrimental or injurious to the health, safety, or general welfare of persons residing or working in the neighborhood, or will be detrimental or injurious to property and improvements in the neighborhood.

(2) The existing nonconforming use of the building or structure would be more appropriately moved to a zone in which the use is permitted, or that there no longer exists a zone in which the existing nonconforming use is permitted.

(c) The dwelling may be reconstructed, restored, or rebuilt up to its predamaged size and number of dwelling units, and its nonconforming use, if any, may be resumed.

(d) Any reconstruction, restoration, or rebuilding undertaken pursuant to this section shall conform to all of the following:

(1) The California Building Standards Code as that code was in effect at the time of reconstruction, restoration, or rebuilding.

(2) Any more restrictive local building standards authorized pursuant to Sections 13869.7, 17958.7, and 18941.5 of the Health and Safety Code, as those standards were in effect at the time of reconstruction, restoration, or rebuilding.

(3) The State Historical Building Code (Part 2.7 (commencing with Section 18950) of Division 13 of the Health and Safety Code) for work on qualified historical buildings or structures.

(4) Local zoning ordinances, so long as the predamage size and number of dwelling units are maintained.

(5) Architectural regulations and standards, so long as the predamage size and number of dwelling units are maintained.

(6) A building permit which shall be obtained within two years after the date of the damage or destruction.

(e) A local agency may enact or enforce an ordinance, regulation, or resolution that grants greater or more permissive rights to restore, reconstruct, or rebuild a multifamily dwelling.

(f) Notwithstanding subdivision (a), a local agency may prohibit the reconstruction, restoration, or rebuilding of a multifamily dwelling that is involuntarily damaged or destroyed by fire, other catastrophic event, or by the public enemy, if the building is located in an industrial zone.

(g) Notwithstanding Section 65803, this section shall also apply to a charter city.

(h) For purposes of this section, “multifamily dwelling” is defined as any structure designed for human habitation that is divided into two or more independent living quarters.