ADU Regulations in Malibu, California (2026)

Regulations at a glance

Local rules & notes

Illegal Fire Zone Restriction: The city attempted to prohibit ADUs on any parcel where the street width is less than 20 feet due to fire hazard status. Multifamily Attached ADU Prohibition: The ordinance incorrectly banned the construction of new attached ADUs on multifamily lots. Non-Compliant Ceiling Height Calculation: The city attempted to include any space with a ceiling height over 6 feet in square footage calculations, which conflicts with the California Building Code's 7-foot standard.

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

Frequently asked questions about ADU regulations in Malibu

• What is the maximum ADU size in Malibu, California?

  In Malibu, the maximum ADU size is typically NaN 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; Malibu may follow state defaults or have local limits. Verify with Malibu planning for your specific lot.

• What are the setback requirements for ADUs in Malibu?

  In Malibu, 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 Malibu planning for overlay zones or design standards that could affect your site.

• What is the maximum height for an ADU in Malibu?

  In Malibu, 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 Malibu or county planning for your zone.

• Is ADU approval ministerial in Malibu?

  In Malibu, 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; Malibu planning can confirm the exact process.

• Are there parking requirements for ADUs in Malibu?

  In Malibu, parking for ADUs is generally Often waived per state law; check local ordinance. California law often waives parking for ADUs within a half-mile of transit or in certain historic districts. Check with Malibu planning for your address.