ADU Permit Online Portal Guide in San Diego, California
Understand the requirements, gather the right documents, and generate a submission-ready packet for your adu permit in San Diego, California.
Key Facts
- Permit required
- Yes
- Submission method
- Online
- Typical fee range
- $105 – $850
- Review time
- Varies — contact authority
- Inspections
- 6 inspections required
San Diego Development Services
Verify before submission5-step online submission process — account registration required[1][2]
Open PortalStep 1: Create Account
[3]Register on the San Diego Development Services portal.
What You Need
- Email address
Common Mistakes
- Using a personal email instead of business email
Portal steps may change without notice. Always confirm the current process at San Diego's online portal.
Avoid rejections — generate a submission-ready packet
Get a personalized ADU permit packet for San Diego, California — tailored to your project.
- Required forms: Permit Application, and more
- Pre-filled templates: Permit Cover Sheet
- Fee breakdown: $105–$850 estimated total
- Step-by-step San Diego Development Services portal submission guide
- Inspection prep checklist (6 items)
- Personalized for your specific project details
No account required · Free to get started
Required Documents
San Diego requires the following documents for this permit application.
Permit Application
Completed building permit application form
Site Plan
Plan showing existing structures, proposed ADU, and setbacks
Architectural Plans
Floor plans, elevations, and sections of the proposed ADU
Structural Calculations
Engineering calculations for foundation and framing
Utility Connection Plan
Plan showing water, sewer, and electrical connections
Energy Compliance
Energy compliance documentation per state energy code
Fees and Timeline
Fee Breakdown
| Fee | Range | Confidence |
|---|---|---|
| Building/Electrical Permit Fee | $210 – $850 | Estimated |
| Plan Review Fee | $105 – $553 | Approximate |
Fees are estimates and may change. Verify current fees with San Diego.
Inspections Required
Foundation Inspection
Verify foundation per approved structural plans
Framing Inspection
Verify wall, floor, and roof framing
Electrical Rough-In
Verify wiring, panel, and circuit layout
Plumbing Rough-In
Verify supply and drain installation
Insulation
Verify insulation installation per energy code
Final Inspection
Complete inspection of finished ADU
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 San Diego?
- Yes. San Diego 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 San Diego?
- Processing times in San Diego vary depending on project complexity and current review volume. The process involves 5 steps. Contact San Diego Development Services for current timelines.
- What documents are required for a adu permit in San Diego?
- San Diego requires 6 documents including Permit Application, Site Plan, Architectural Plans, Structural Calculations, and others. See the full list above for details.
- What happens if I build without a adu permit in San Diego?
- Building without a permit in San Diego 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 San Diego?
- Yes. PermitMagic generates a submission-ready packet tailored to San Diego'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 San Diego?
- ADU permit fees in San Diego typically range from $105 to $850, depending on project scope. Fees may include building permit, plan review, and technology surcharges. Verify current fees with San Diego.
Related Permits
Other permits in San Diego
ADU permits in nearby cities
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