ADU Regulations in Del Rey Oaks, California (2026)

Regulations at a glance

Local rules & notes

Water Moratorium: The City is under a Cease and Desist Order regarding water, preventing new hookups for ADUs unless an allocation is available. Restrictive Lot Size Minimum: The existing ordinance requires a minimum lot size of 8,000 sq. ft. to build an ADU, which is noted as a constraint. Discretionary Review Process: The existing code requires a Use Permit for ADUs, which is not ministerial as required by state law. Separate Utility Hookups: The City requires separate utility hookups and meters for ADUs.

For the official ordinance and latest updates, check your city or county planning department.

Frequently asked questions about ADU regulations in Del Rey Oaks

• What is the maximum ADU size in Del Rey Oaks, California?

  In Del Rey Oaks, the maximum ADU size is typically 450 square feet, depending on whether the unit is attached or detached. California state law allows up to 1,200 sq ft for detached ADUs and 800 sq ft for attached in many jurisdictions; Del Rey Oaks may follow state defaults or have local limits. Verify with Del Rey Oaks planning for your specific lot.

• What are the setback requirements for ADUs in Del Rey Oaks?

  In Del Rey Oaks, typical setback requirements are 4 feet from the side property line and 4 feet from the rear. These may be reduced to 4 feet under California Government Code § 65852.2 where applicable. Check with Del Rey Oaks planning for overlay zones or design standards that could affect your site.

• What is the maximum height for an ADU in Del Rey Oaks?

  In Del Rey Oaks, the maximum height for an ADU is generally 16 feet. State law often allows up to 16 feet for detached ADUs and up to 25 feet when within 4 feet of the property line in some cases. Confirm with Del Rey Oaks or county planning for your zone.

• Is ADU approval ministerial in Del Rey Oaks?

  In Del Rey Oaks, ADU approval is typically Ministerial (by-right) per Gov Code §65852.2. Ministerial (by-right) review means the city must approve qualifying applications without discretionary review, per California Gov Code § 65852.2. Your project must still meet objective standards; Del Rey Oaks planning can confirm the exact process.

• Are there parking requirements for ADUs in Del Rey Oaks?

  In Del Rey Oaks, parking for ADUs is generally true. California law often waives parking for ADUs within a half-mile of transit or in certain historic districts. Check with Del Rey Oaks planning for your address.