California New Adu Laws 2025. In september 2024, governor newsom signed three more adu bills (ab 2533, sb 1211, and sb 1077) that will each take effect on january 1, 2025. Sb 1211 (skinner) increases flexibility for adus.

Given the increasing affordability issues that california faces, including high insurance premiums, rising home prices, and lackluster inventory, legislators passed multiple. Several new laws aim to enhance the flexibility and accessibility of accessory dwelling units (adus), further strengthening one of california’s most successful housing reforms.