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In September 2016, Governor Brown signed two legislative acts that comprised the new law governing accessory dwelling units (ADUs), AB 2299 and SB 1069, both of which came into effect on January 1, 2017. The new statute amended various sections of Government Code section 65852.2 which regulates accessory dwelling units (formerly called second dwelling units) and invalidates a local agency’s existing accessory dwelling unit ordinance if it does not comply with all requirements of the newly adopted state standards. The intent of the new law is to reduce the regulatory, physical and financial barriers to constructing accessory dwelling units and encourage construction of smaller, often more affordable housing options, for seniors, young adults, and others who are affected by the housing shortage in California.

On March 14, 2017, the Board of Supervisors adopted an Interim Ordinance (Ordinance No. 4507) to regulate accessory dwelling units in non-coastal areas as an Urgency Measure, pursuant to Government Code section 65858. A summary of the new provisions in the ADU Interim Ordinance is provided in the link below. Ordinance No. 4507 will be in effect for non-coastal areas for 45 days (until April 28, 2017).

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On April 18, 2017, the Board of Supervisors adopted an extension to the ADU Interim Ordinance (Ordinance No. 4509). The ADU Interim Ordinance Extension carried over the same provisions that were adopted in Ordinance 4507. The ADU Interim Ordinance Extension will be in effect for 10 months and 15 days (until March 13, 2018).

During a September 19, 2017 meeting, the Board of Supervisors provided direction to Planning Division staff regarding preparing permanent ADU regulations for both the non-coastal and coastal zones. With direction provided by the Supervisors, Planning staff are currently drafting permanent ADU provisions for the Non-Coastal Zoning Ordinance that will regulate ADUs in the non-coastal zone after the expiration of the ADU Interim Ordinance. Staff are also drafting permanent ADU regulations for the Coastal Zoning Ordinance. Until new, permanent ADU provisions are adopted for the Coastal Zoning Ordinance, the existing Coastal Zoning Ordinance ADU standards remain in effect.

The public is invited to comment and provide feedback at future Municipal Advisory Council (MAC) meetings. A list of currently scheduled MAC meets is below:

  • El Rio MAC | October 9th, 7PM
    Nyeland Acres Community Center, 3334 Santa Clara Ave., Oxnard
  • Casa Conejo MAC | November 15th, 6 PM
    Walnut Elementary School, 581 Dena Drive, Newbury Park
  • Santa Rosa Valley MAC | November 16th, 6PM
    Santa Rosa Property Owner’s Association Clubhouse, 11701 East Las Posas Road, Camarillo
  • Ojai Valley MAC | November 20th, 7PM
    Oak View Community Center, 18 Valley Road, Ojai
  • Oak Park MAC | November 28th, 7 PM
    Oak Park High School, Large G-9 Room, 899 Kanan Road, Oak Park
  • Piru Neighborhood Council | January 17th, 2018, 7 PM
    Piru Community Center, 802 Orchard St., Piru
  • Somis MAC | January 24th, 2018, 6:30 PM
    Somis School, Large Auditorium, 5268 North St., Somis

Click here for the ADU Public Outreach Presentation

After the Municipal Advisory Council meetings, a proposed permanent ADU Ordinance will be available for review, comment, and decision at a Planning Commission Hearing and a subsequent Board of Supervisors Hearing tentatiavely scheduled to be held January 18, 2018, and February 27, 2018. The public will have opportunities to make comments at the Planning Commission and Board of Supervisors hearings. A timeline of the public meetings and hearings for the draft and proposed ADU Ordinances is provided below:

  • January 18, 2018 - Planning Commission Hearing
  • February 27, 2018 - Board of Supervisors Hearing
  • March 13, 2018 - Interim Ordinance Expires

Any questions or comments regarding the Interim ADU Ordinance or the Permanent ADU Ordinance Update can be directed to the project planner, Jennifer Butler, by email at This email address is being protected from spambots. You need JavaScript enabled to view it., or to the assistant planner, Owen Deutsch, at This email address is being protected from spambots. You need JavaScript enabled to view it.