Government Code Section 65852.150

  • Among other things, allows ADUs in zones that allow single-family and multifamily uses provides additional rental housing and is an essential component in addressing California housing needs.

Effective January 1, 2021

  • Laws that further reduced barriers, streamlined the approval process, and expanded capacity to accommodate the development of ADUs and JADUs.

AB 345:

AB 3182:

AB 68:

AB 881:

SB 13:

AB 587:

AB 670:

AB 671:

Effective January 1, 2022

SB 9:

  • SB 9 allows homeowners to create up to four homes on an existing parcel, in effect, eliminating single-family-only zoning. Crucially, the law allows the owner to “split” their lot, which makes it easier to sell or finance additional homes on a single parcel.

Effective January 1, 2023

  • Laws that made changes to the statewide regulatory standards that apply to ADUs including height allowances for two-story ADUs and clarification of building permit issuance processes.

SB 897:

AB 2221:

AB 916:

AB 157:

AB 561: