ADU Regulations in Desert Hot Springs, California (2026)

Regulations at a glance

Local rules & notes

Amnesty for Unpermitted ADUs: Local agencies cannot deny permits for unpermitted ADUs built before Jan 1, 2020, unless there is a health/safety violation. AB 2533 (2025) strengthens this by prohibiting penalties and requiring inspections to focus on health/safety corrections. JADU Owner Occupancy Changes (2026): Effective Jan 1, 2026, AB 1154 specifies that owner-occupancy for JADUs is only required if the unit shares sanitation facilities with the primary structure. Impact Fee Calculation Refinement (2026): Effective Jan 1, 2026, SB 543 clarifies that impact fee exemptions/proportionality are based on 'interior livable space' rather than just square footage.

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

Frequently asked questions about ADU regulations in Desert Hot Springs

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

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

• What are the setback requirements for ADUs in Desert Hot Springs?

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

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

  In Desert Hot Springs, 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 Desert Hot Springs or county planning for your zone.

• Is ADU approval ministerial in Desert Hot Springs?

  In Desert Hot Springs, 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; Desert Hot Springs planning can confirm the exact process.

• Are there parking requirements for ADUs in Desert Hot Springs?

  In Desert Hot Springs, 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 Desert Hot Springs planning for your address.