ADU Regulations in Palm Desert, California (2026)

Regulations at a glance

Local rules & notes

Hillside Planned Residential (HPR) Exclusion: ADUs and JADUs are explicitly prohibited in the Hillside Planned Residential (HPR) zone, despite being permitted in all other residential and mixed-use zones. Affordable ADU Pilot Program: The city established a pilot program for ADUs/JADUs dedicated as affordable for 30 years, offering floor area bonuses and permit fee reductions. Public/Institutional Zone Permissibility: Palm Desert allows ADUs and JADUs in the Public/Institutional zone, which is more expansive than standard state requirements focusing on residential/mixed-use land.

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

Frequently asked questions about ADU regulations in Palm Desert

• What is the maximum ADU size in Palm Desert, California?

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

• What are the setback requirements for ADUs in Palm Desert?

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

• What is the maximum height for an ADU in Palm Desert?

  In Palm Desert, 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 Palm Desert or county planning for your zone.

• Is ADU approval ministerial in Palm Desert?

  In Palm Desert, 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; Palm Desert planning can confirm the exact process.

• Are there parking requirements for ADUs in Palm Desert?

  In Palm Desert, 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 Palm Desert planning for your address.