Government Code section 66331

In enforcing building standards pursuant to Article 1 (commencing with Section 17960) of Chapter 5 of Part 1.5 of Division 13 of the Health and Safety Code for an accessory dwelling unit described in subdivision (a) or (b), a local agency, upon request of an owner of an accessory dwelling unit for a delay in enforcement, shall delay enforcement of a building standard, subject to compliance with Section 17980.12 of the Health and Safety Code:

(a)

The accessory dwelling unit was built before January 1, 2020.

(b)

The accessory dwelling unit was built on or after January 1, 2020, in a local jurisdiction that, at the time the accessory dwelling unit was built, had a noncompliant accessory dwelling unit ordinance, but the ordinance is compliant at the time the request is made.

Source: Section 66331, https://leginfo.­legislature.­ca.­gov/faces/codes_displaySection.­xhtml?lawCode=GOV§ionNum=66331.­ (updated Mar. 25, 2024; accessed Jun. 16, 2025).

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Verified:
Jun. 16, 2025

§ 66331's source at ca​.gov