AB 1033

AB 1033 is a California law enacted in 2023 that authorizes local jurisdictions to allow ADUs to be sold separately from the primary dwelling as condominium interests, without requiring a physical lot split. Under AB 1033, a city or county may adopt an enabling ordinance permitting ADU condominiumization — converting a single parcel with a primary dwelling and ADU into a structure where each unit is a separately saleable condominium with its own title, the ability to be independently financed, and independent transferability. This mechanism provides an alternative pathway to the SB 9 lot split for homeowners who want to separately sell their ADU.