ADU Regulations in El Centro, California (2026)

Regulations at a glance

Local rules & notes

Illegal Multifamily ADU Cap: The County code limits detached ADUs on multifamily lots to 2 units. HCD notes that state law allows up to 8 units (or the number of existing units) and the County must amend this. Subjective Compatibility Standards: The County requires ADUs to be 'compatible' with the primary dwelling. HCD flags this as a subjective term that must be removed in favor of objective standards. Service Capacity Restrictions: The County restricts ADUs in zones where public services are deemed inefficient on a case-by-case basis. HCD states this must be done via area designation, not individual application review.

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

Frequently asked questions about ADU regulations in El Centro

• What is the maximum ADU size in El Centro, California?

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

• What are the setback requirements for ADUs in El Centro?

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

• What is the maximum height for an ADU in El Centro?

  In El Centro, 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 El Centro or county planning for your zone.

• Is ADU approval ministerial in El Centro?

  In El Centro, 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; El Centro planning can confirm the exact process.

• Are there parking requirements for ADUs in El Centro?

  In El Centro, parking for ADUs is generally 2 spaces for 2+ bedrooms. California law often waives parking for ADUs within a half-mile of transit or in certain historic districts. Check with El Centro planning for your address.