Use this guide
Choose the questions relevant to your situation. Expand each answer, save the checklist and request written clarification where evidence is missing.
Questions homeowners ask
Does this guide apply everywhere in San Diego County?
No. The permit references here are for the City of San Diego. First confirm the authority responsible for your parcel and your electricity provider. Do not select a permit process solely from a mailing address, neighborhood name or a search result. Other cities and unincorporated areas require their own confirmation.
Does the City require a permit for home solar?
The City’s May 2026 Information Bulletin 301 requires permitting for PV and energy-storage installations. The required permit type depends on the project scope.
Source: City of San Diego: Information Bulletin 301, May 2026. Reviewed 2026-10-06.
Can a rooftop project avoid plan review?
The City offers a self-issued residential rooftop PV route when its template and all eligibility criteria are satisfied. These include limits on system size and conditions concerning fire and structural review. Ask your designer to demonstrate eligibility; do not assume every rooftop or battery project qualifies.
Source: City of San Diego: Residential rooftop PV permit. Reviewed 2026-10-06.
What if installing solar needs roof structural modifications?
Bulletin 301 requires a Combination Building Permit for structural modifications supporting PV on existing single-family, duplex or townhouse structures. In that case, a separate Electrical Permit is not required.
Source: City of San Diego: Information Bulletin 301, May 2026. Reviewed 2026-10-06.
Where do I find the application and plan requirements?
The official residential PV page links to the application guide, plan template and upload requirements. It requires building plans and specifications in the specified PDF format. Use those current instructions rather than submitting only a sales rendering.
Source: City of San Diego: Residential rooftop PV permit. Reviewed 2026-10-06.
How do I estimate permit fees?
Use Bulletin 301 and confirm the actual project scope with Development Services. Fees depend on the applicable review, inspection and other items. This guide does not quote a flat permit price.
Source: City of San Diego: Information Bulletin 301, May 2026. Reviewed 2026-10-06.
What if panels must be removed for re-roofing?
Bulletin 301 calls for the original approved record plans with the submitted PV plans and says a pre-removal inspection may be required. Its reinstallation permit does not authorize alteration of the original equipment or system. Confirm the removal and reinstallation scope before roof work.
Source: City of San Diego: Information Bulletin 301, May 2026. Reviewed 2026-10-06.
How does an SDG&E interconnection application begin?
For an SDG&E-served project, the customer or contractor submits through DIIS. After initial technical review, the utility sends a notification when installation can begin. Coordinate that process with the City’s required permit; an application submission alone is not permission to operate.
Source: SDG&E: Interconnection application resources. Reviewed 2026-10-06.
Does passing the City inspection mean I can turn the system on?
No. SDG&E describes Permission to Operate as its authorization to activate the system on a specified date after the required installation, permitting and interconnection steps. Retain that authorization rather than treating a City inspection result as the utility’s approval.
Source: SDG&E: Considering solar and operating approval. Reviewed 2026-10-06.
What should I request when my project is waiting on approval?
Ask for the application identifiers, current stage, last submission or correction request, next responsible party and missing item. Request a milestone update instead of one unexplained completion date. Separate time spent awaiting the contractor from time awaiting City or utility action. No approval timeline is guaranteed here.
How does a site survey help without replacing the approvals?
A defined survey can document accessible site information for design and review. Ask which roof, electrical and equipment observations were captured and which remain unverified. Solar Survey AI can discuss available survey services, but our report is not a City permit, engineering determination or SDG&E operating authorization.
Your decision checklist
- Verify the parcel’s permit authority and actual electricity provider.
- Have the designer identify the applicable permit route and eligibility evidence.
- Agree who submits plans, utility documents and correction responses.
- Retain application identifiers and the exact submitted scope.
- Track City inspection results and unresolved corrections.
- Keep SDG&E operating authorization separately from the permit records.
- Confirm approvals for any later equipment or roof-work change.
Save or print this guide from your browser. Keep completed records privately.
Track two approval processes in one folder
| Checkpoint | Record to request |
|---|---|
| City application | Permit identifier, submitted scope and current request |
| Utility application | DIIS identifier, application status and next required item |
| City inspections | Inspection results and unresolved corrections |
| Permission to Operate | Utility authorization and its applicable date |
Example: a contractor says the application is approved. Ask which application and what the actual record authorizes. A complete upload, an issued City permit and utility Permission to Operate answer different questions. Keep the specific record attached to the milestone instead of marking every step complete.
Example: roof work changes after the proposal is signed. Ask the responsible designer and authority whether the revised scope changes the required permit or submission. Do not assume that an earlier eligibility assessment still covers changed work.
Start with the homeowner solar journey and assessment scope and independence. Explore California survey resources, Solar Survey AI site surveys and our evidence methodology. Confirm the actual homeowner service scope and availability with our team.
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About these guides
Published by Solar Survey AI, a commercial survey-services company. Our original decision checklists are recommendations; linked authorities support the referenced facts. We may benefit if you purchase our services. This is not independent certification of our company, a project-specific engineering decision or personal tax/legal advice. Local rules, contracts and site evidence control individual decisions. Reviewed 2026-10-06.
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