It depends. As long as the D-ADU was legally established and continues to comply with the ordinance requirements in effect at the time it was established, it may be a non-conforming D-ADU and you could be able to continue renting out both units just as you have in the past. This still requires that you acquire the ADU permit and are compliant with the applicable ordinance requirements of the permit. New D-ADUs created or established on or after October 1, 2021 will require the owner of the property to live in the primary dwelling unit. Owners of properties with D-ADUs that are not in compliance with applicable ordinance requirements for their use will be required to come into compliance or they may face enforcement actions.