ADU Regulations in Saratoga, California (2026)

Regulations at a glance

Local rules & notes

HOA Interference Prohibited: Homeowners’ associations (HOAs) cannot influence or review ADU applications; such third-party reviews violate State ADU Law. 60-Day Deemed Approved Rule: If a local agency fails to act on a completed ADU application within 60 days, the application is deemed approved by operation of law. Unpermitted Unit Amnesty: Local agencies cannot deny permits for unpermitted ADUs built before 2020 based on building code violations unless they are health/safety hazards.

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

Frequently asked questions about ADU regulations in Saratoga

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

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

• What are the setback requirements for ADUs in Saratoga?

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

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

  In Saratoga, 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 Saratoga or county planning for your zone.

• Is ADU approval ministerial in Saratoga?

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

• Are there parking requirements for ADUs in Saratoga?

  In Saratoga, 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 Saratoga planning for your address.