ADU Regulations in Ripon, California (2026)

Regulations at a glance

Local rules & notes

Eave Height Ratio: ADU eave height is capped at 80% of the primary house eave height. Street-Parallel Width Cap: The width of the ADU parallel to the street is limited to 60% of the main house width. Health Certification Requirement: Applicants must get health department certification for water and sewage capacity.

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

Frequently asked questions about ADU regulations in Ripon

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

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

• What are the setback requirements for ADUs in Ripon?

  In Ripon, typical setback requirements are 4 feet from the side property line and 2 feet from the rear. These may be reduced to 4 feet under California Government Code § 65852.2 where applicable. Check with Ripon planning for overlay zones or design standards that could affect your site.

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

  In Ripon, the maximum height for an ADU is generally 25 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 Ripon or county planning for your zone.

• Is ADU approval ministerial in Ripon?

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

• Are there parking requirements for ADUs in Ripon?

  In Ripon, 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 Ripon planning for your address.