ADU Regulations in Avenal, California (2026)

Regulations at a glance

Local rules & notes

ADU Prototype Plans: The County has committed to preparing pre-approved ADU prototype plans to save applicants time and money. Growth Management Ordinance Exemption: ADUs are exempt from the County's strict annual growth cap/permit allocation system. Inclusionary Housing Fee Exemption: Housing units 2,200 sq. ft. or less are exempt from inclusionary housing fees.

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

Frequently asked questions about ADU regulations in Avenal

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

  In Avenal, the maximum ADU size is typically 1200 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; Avenal may follow state defaults or have local limits. Verify with Avenal planning for your specific lot.

• What are the setback requirements for ADUs in Avenal?

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

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

  In Avenal, 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 Avenal or county planning for your zone.

• Is ADU approval ministerial in Avenal?

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

• Are there parking requirements for ADUs in Avenal?

  In Avenal, 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 Avenal planning for your address.