ADU Regulations in Banning, California (2026)

Regulations at a glance

Local rules & notes

AB 1033 Condoization: State law authorizes local agencies to adopt ordinances allowing the separate sale of ADUs as condominiums. Pre-Approved Plans Mandate: Local agencies are required to develop a program for pre-approved ADU plans by January 1, 2025, to expedite permitting. Unpermitted Unit Amnesty (AB 2533): Local agencies cannot deny permits for unpermitted ADUs built before Jan 1, 2020, unless there is a health/safety violation. Multifamily Detached Allowance: State law allows up to two detached ADUs on lots with proposed multifamily, and up to eight on lots with existing multifamily.

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

Frequently asked questions about ADU regulations in Banning

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

  In Banning, 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; Banning may follow state defaults or have local limits. Verify with Banning planning for your specific lot.

• What are the setback requirements for ADUs in Banning?

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

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

  In Banning, 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 Banning or county planning for your zone.

• Is ADU approval ministerial in Banning?

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

• Are there parking requirements for ADUs in Banning?

  In Banning, parking for ADUs is generally 1 space per unit or bedroom. California law often waives parking for ADUs within a half-mile of transit or in certain historic districts. Check with Banning planning for your address.