Watsonville, CA Accessory Structures: ADU Rental Restrictions (2026)

The rental rule in the City of Watsonville sits in Section 14-23.110, the Restrictions section of Chapter 14-23 (Accessory Dwelling Units and Junior Accessory Dwelling Units). Subsection (b), titled Length of Tenancy, states that State-exempt units shall not be rented for a period less than thirty (30) days. The 30-day floor is written for State-exempt units, which Section 14-23.030(a) defines by reference to the objective standards in California Government Code Section 66323. That subsection also bars the City from imposing any additional development standards, design standards or discretionary review on a State-exempt unit beyond those in Section 66323.

The rest of the Restrictions section addresses other limits on how an ADU is used. Section 14-23.110(a) says the City shall not issue a certificate of occupancy for an ADU before it issues one for the primary dwelling, or as per Section 66328 of the California Government Code. Subsection (e) prohibits selling or conveying an ADU separately from the main building unless it meets the conditions of Section 14-23.070, which covers ADUs developed by a qualified nonprofit housing developer and tied to the affordability covenants of Chapter 14-46. Together these provisions keep ADUs in Watsonville as long-term housing attached to the lot rather than as separate parcels or nightly rentals.

Chapter 14-23 applies in all zones that permit single-family or multi-family dwellings or religious assembly uses, and the chapter was last amended by Ordinance 1481-25, effective October 9, 2025. Section 14-23.060(b) separately states that no parking spaces are required for State-exempt ADUs, so a landlord renting one on a 30-day or longer term has no added parking duty under the City chapter.