ADU Regulations in Fresno, California (2026)

Regulations at a glance

Local rules & notes

Application Fee Waiver for Pre-Approved Plans: The City waives application fees specifically for projects using their pre-approved plans, in addition to providing the plans themselves for free. Blanket Parking Exemption: Fresno requires no off-street parking for ADUs regardless of transit proximity, which is more lenient than the standard state default allowing 1 space per unit in some areas. Small Homes vs. ADUs Distinction: The guide regulates 'Small Homes' (primary residences) differently than ADUs. Small Homes require fire sprinklers and garage parking, while ADUs typically do not.

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

Frequently asked questions about ADU regulations in Fresno

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

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

• What are the setback requirements for ADUs in Fresno?

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

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

  In Fresno, 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 Fresno or county planning for your zone.

• Is ADU approval ministerial in Fresno?

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

• Are there parking requirements for ADUs in Fresno?

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