ADU Regulations in Dorris, California (2026)

Regulations at a glance

Local rules & notes

Shared Driveway Requirement: The ADU is explicitly required to share a driveway with the primary dwelling unit, restricting independent vehicular access points. Bedroom Limit: ADUs are strictly limited to a maximum of 2 bedrooms. Generous Size Calculation: The size limit is the GREATER of 900 sq ft or 30% of the primary dwelling, which is more flexible than codes using 'lesser of'. Density Exemption: ADUs are explicitly excluded from density calculations, facilitating their addition to lots that might otherwise be at maximum density.

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

Frequently asked questions about ADU regulations in Dorris

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

  In Dorris, the maximum ADU size is typically 900 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; Dorris may follow state defaults or have local limits. Verify with Dorris planning for your specific lot.

• What are the setback requirements for ADUs in Dorris?

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

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

  In Dorris, 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 Dorris or county planning for your zone.

• Is ADU approval ministerial in Dorris?

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

• Are there parking requirements for ADUs in Dorris?

  In Dorris, 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 Dorris planning for your address.