ADU Regulations in Susanville, California (2026)

Regulations at a glance

Local rules & notes

5-Year Enforcement Delay: Owners of unpermitted ADUs built before 2020 can request a 5-year delay in code enforcement to bring the unit into compliance, provided it is not a health/safety hazard. HOA Interference Prohibition: Homeowners associations are strictly prohibited from influencing or reviewing ADU applications, as they are considered third parties. 60-Day Deemed Approved: If the local agency does not approve or deny a completed ADU application within 60 days, it is legally deemed approved.

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

Frequently asked questions about ADU regulations in Susanville

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

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

• What are the setback requirements for ADUs in Susanville?

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

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

  In Susanville, 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 Susanville or county planning for your zone.

• Is ADU approval ministerial in Susanville?

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

• Are there parking requirements for ADUs in Susanville?

  In Susanville, 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 Susanville planning for your address.