ADU Permit Online Portal Guide in Santa Ana, California
Everything you need to apply for a adu permit in Santa Ana, California — documents, fees, steps, and a downloadable submission packet.
Key Facts
- Permit required
- Yes
- Submission method
- Online
- Typical fee range
- $3,600 – $10,230
- Review time
- Varies by jurisdiction
- Inspections
- 7 inspections required
Santa Ana Planning and Building Agency
Verified6-step online submission process — account registration required[1][2]
Open PortalPortal steps may change without notice. Always confirm the current process at Santa Ana's online portal.
Generate your permit packet
Get a personalized ADU permit packet for Santa Ana, California — tailored to your project details.
- Required forms: Building Permit Application, and more
- Pre-filled templates: Permit Cover Sheet
- Fee breakdown: $1,200–$6,200 estimated total
- Step-by-step Santa Ana Planning and Building Agency portal submission guide
- Inspection prep checklist (7 items)
- Personalized for your specific project details
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Required Documents
Santa Ana requires the following documents for this permit application.
Building Permit Application
Completed City of Santa Ana building permit application with project scope, legal property description, and owner/applicant information and certification
Architectural Drawings
Complete architectural drawings signed and sealed by a licensed California architect or professional engineer with floor plans, elevations, sections, and building details
Site Plan
Site plan showing property boundaries, lot dimensions, existing and proposed structures, setbacks, parking layout, driveways, and utility connections
Proof of Property Ownership
Current deed or title report documenting property ownership, required under California Government Code 65852.2 for ADU verification
Utility and Mechanical Plans
Plans showing water, sewer, electrical, and gas service connections with separate metering specifications for independent ADU utility service
Fees and Timeline
Fee Breakdown
| Fee | Range | Confidence |
|---|---|---|
| ADU Permit Fee | $2,400 – $6,200 | Verified |
| Plan Review Fee | $1,200 – $4,030 | Verified |
Inspections Required
Foundation and footing inspection per California Building Co
Foundation and footing inspection per California Building Code
Framing and structural member inspection
Framing and structural member inspection
Electrical rough-in and service panel inspection
Electrical rough-in and service panel inspection
Plumbing rough-in and fixture installation inspection
Plumbing rough-in and fixture installation inspection
Mechanical system and HVAC installation inspection
Mechanical system and HVAC installation inspection
Interior and exterior construction quality inspection
Interior and exterior construction quality inspection
Final inspection and Certificate of Occupancy
Final inspection and Certificate of Occupancy
Authority Sources
Data on this page is sourced from official records published by the permitting authority. Always verify requirements directly before submitting.
Verified February 15, 2026
Verified February 15, 2026
Verified February 15, 2026
Frequently Asked Questions
- Do I need a adu permit in Santa Ana?
- Yes. Santa Ana requires a adu permit for this type of project. Submitting without a permit may result in fines, required removal, or complications when selling your property.
- How long does adu permit approval take in Santa Ana?
- Processing times in Santa Ana vary depending on project complexity and current review volume. The process involves 6 steps. Contact Santa Ana Development Services for current timelines.
- What documents are required for a adu permit in Santa Ana?
- Santa Ana requires 5 documents including Building Permit Application, Architectural Drawings, Site Plan, Proof of Property Ownership, and others. See the full list above for details.
- What happens if I build without a adu permit in Santa Ana?
- Building without a permit in Santa Ana can result in stop-work orders, fines, required removal of work, difficulty selling your property, and insurance complications. It is strongly recommended to obtain proper permits before starting work.
- Can PermitMagic help prepare my adu permit submission in Santa Ana?
- Yes. PermitMagic generates a submission-ready packet tailored to Santa Ana's requirements, including a document checklist, workflow steps, and authority references. Start a permit plan to get your personalized packet.
- How much does a adu permit cost in Santa Ana?
- ADU permit fees in Santa Ana typically range from $3,600 to $10,230, depending on project scope. Fees may include building permit, plan review, and technology surcharges. Verify current fees with Santa Ana.
Related Permits
Other permits in Santa Ana
ADU permits in nearby cities
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Answer a few project questions and get a adu permit packet for Santa Ana, California — with every document, form, and fee organized for submission.
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