ADU Regulations in Moraga, California (2026)

Regulations at a glance

Local rules & notes

High Park Impact Fees: HCD identified that park fees make up a disproportionately large portion of the Town's impact fees, creating a significant financial barrier to development. Scenic Corridor Constraints: Development standards within designated Scenic Corridors are flagged as potential constraints that the Town must review and revise to facilitate density. Discretionary Permit Barriers: The Town requires discretionary permits for various housing projects, which HCD insists must be streamlined to promote certainty and timing.

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

Frequently asked questions about ADU regulations in Moraga

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

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

• What are the setback requirements for ADUs in Moraga?

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

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

  In Moraga, 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 Moraga or county planning for your zone.

• Is ADU approval ministerial in Moraga?

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

• Are there parking requirements for ADUs in Moraga?

  In Moraga, parking for ADUs is generally Often waived per state law; check local ordinance. California law often waives parking for ADUs within a half-mile of transit or in certain historic districts. Check with Moraga planning for your address.