Archives: FAQs

Step 1. Determine Eligibility

To utilize Santa Ana’s Pre-Approved ADU Plans, your property must meet the following requirements: Project site is developed or proposed to be developed with a single-family dwelling unit Not located in a flood zone (Zone A or AE) Not located in a historic district (French Park (SD-19), Downtown Historic District, and Floral Park) Not located … Continued

Step 3. Submit a Building Plan Check Request

Projects utilizing the Pre-Approved ADU Plans can only submit via electronic plan check. Pre-Approved ADU plans qualify as Tier 2 Projects and are eligible for Planning and Building concurrent review. Click here to request an electronic plan review for a new Pre-Approved ADU. Please allow up to 3 business days for staff to process your request … Continued

Tier 1 Projects

Residential and Non-Residential Additions less than 2,500 sq. ft. (anything over 2,500 sq. ft. requires Development Project Review) Residential & Non-Residential Façade Modifications New Single Family Dwelling Unit New Accessory Dwelling Unit/Junior Accessory Dwelling Unit New Landscape Projects greater than 500 sq. ft. and Rehabilitated Landscape Projects Greater than 2,500 sq. ft. Residential Front Yard … Continued

Do I have to provide parking for an ADU? Am I exempt from parking?

For ADUs, one parking space is required for newly constructed units unless the unit is: Within 1/2 mile of public transit. Created within the area of an existing building. In a historic district. Not offered an on-street parking permit when one is required. On the same block as a car share. A studio unit. No … Continued

Can I have more than one ADU or JADU on a property?

Up to one ADU and one JADU per lot developed with a single-family residence. Up to two detached ADUs are allowed on properties with multifamily units and up to 25% of the existing units in the multifamily building through conversion of existing non-habitable space. JADUs are not allowed on properties developed with multifamily dwellings or … Continued

What types of ADUs are there?

There are generally two types of  ADUs: Conversion of existing permitted space, including an accessory structure or a portion of the existing primary residence into an ADU A new attached or detached ADU  

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