ADU Regulations in Fort Jones, California (2026)

Regulations at a glance

Local rules & notes

Affordable Housing Size Deviation: Applicants can request a deviation from the maximum size limits (850/1000 sq ft) if the ADU is deed-restricted as an affordable rental unit to meet the City's Housing Element goals. Multifamily Detached Size Allowance: Detached ADUs on lots with multiple dwelling units are explicitly allowed up to 1,200 square feet, which is larger than the limit for single-family lots. Coastal Overlay Restrictions: Specific overlay zones (Bluff, Slope, Canyon) impose a stricter 14-foot height limit and specific setback requirements to protect coastal resources.

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

Frequently asked questions about ADU regulations in Fort Jones

• What is the maximum ADU size in Fort Jones, California?

  In Fort Jones, the maximum ADU size is typically 850 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; Fort Jones may follow state defaults or have local limits. Verify with Fort Jones planning for your specific lot.

• What are the setback requirements for ADUs in Fort Jones?

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

• What is the maximum height for an ADU in Fort Jones?

  In Fort Jones, 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 Fort Jones or county planning for your zone.

• Is ADU approval ministerial in Fort Jones?

  In Fort Jones, 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; Fort Jones planning can confirm the exact process.

• Are there parking requirements for ADUs in Fort Jones?

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