Cut through the red tape. Everything you need to know about getting a building permit in San Diego County — fees, timelines, required documents, and how to avoid the most common rejections.
STEP 1 — DO I NEED A PERMIT?
Not every project requires a permit. Here's what you need to know for common project types.
A permit is required when the remodel involves structural changes, new electrical circuits, plumbing relocation, or HVAC modifications. Cosmetic-only work (paint, cabinets, countertops) typically does not require a permit.
Required when adding a bathroom or relocating plumbing fixtures. Tile replacement and fixture swap-in-kind usually does not require a permit.
Any addition that adds livable square footage requires a permit. This includes bedroom additions, sunrooms, and garage conversions to living space.
ADUs require a building permit regardless of size. San Diego County is ADU-friendly — state law streamlines the process and limits restrictions.
Pools, spas, and hot tubs all require permits. Electrical, plumbing, and barrier (fencing) inspections are required.
A permit is required for solar PV and solar thermal systems. San Diego County offers an expedited over-the-counter review for standard residential solar.
Full permit package required including grading, foundation, framing, electrical, plumbing, and mechanical. Must comply with Title 24 energy code.
Decks over 30 inches from grade and attached patio covers require a permit. Detached patio covers under 200 sq ft may qualify for exemption.
Re-roofing with like-for-like materials on a structure of 500 sq ft or less may not require a permit. Most full roof replacements require a permit and inspection.
Fences under 6 feet high generally do not require a permit in unincorporated San Diego County. Higher fences, masonry walls, and fences near fire hazard zones may require a permit.
A demolition permit is required before tearing down any structure. Asbestos and lead-paint surveys are typically required before demolition of older homes.
Upgrading electrical panels, adding circuits, and rewiring all require permits. Inspections are required at rough-in and final stages.
STEP 2 — HOW MUCH WILL IT COST?
Fees in San Diego County are based on project valuation, type, and square footage. These are the current standard fees.
| Category | Fee Type | Amount | Unit | Notes |
|---|---|---|---|---|
| Plan Review | Residential plan check (standard) | 65% of building permit fee | per application | Paid at time of permit application |
| Building Permit | New construction — per square foot | $1.20–$1.85 | per sq ft | Based on ICC valuation tables and construction type |
| Building Permit | Remodel/alteration (valuation-based) | Min $168 + $14.55/each $1,000 valuation | per project | Valuation set by ICC Building Valuation Data table |
| Inspection | Standard inspection (each visit) | $168 | per inspection | First inspection included; re-inspections billed separately |
| Inspection | Re-inspection fee | $168 | each | Charged when work is not ready or corrections uncorrected |
| Grading | Grading permit (residential) | $500–$5,000 | per permit | Based on cubic yardage of cut/fill |
| Fire | Fire sprinkler plan check | $336 minimum | per application | Required for new construction; reviewed by Fire Authority |
| Misc | Technology surcharge | 2% | of permit fees | State-mandated surcharge |
| Misc | SMIP seismic fee (state) | 0.0001% of valuation | state surcharge | Strong Motion Instrumentation Program fee |
STEP 3 — HOW LONG WILL IT TAKE?
From application to final inspection — here's what to expect at each stage in San Diego County.
Gather required documents: site plan, floor plans, Title 24 energy calculations (if applicable), contractor license info, and project specifications.
Submit online via San Diego County ePermits portal or in person at the Permit Assistance Center (5510 Overland Ave, San Diego). Permit tech reviews for completeness.
County plan checkers review your drawings for code compliance (building, electrical, plumbing, mechanical, fire). Complex projects may require multiple department reviews.
If your plans have deficiencies, you receive a correction list. Update drawings and resubmit. Expect 1–2 rounds of corrections for complex projects.
Once plans are approved, pay remaining permit fees and receive your permit. Post the permit card on-site — inspectors must see it during inspections.
Schedule required inspections through ePermits as work progresses: foundation, framing, rough electrical/plumbing/mechanical, insulation, and final. Each stage must pass before proceeding.
After all inspections pass, the final inspection is conducted. Upon approval, you receive a Certificate of Occupancy (CO) or Final Approval letter.
STEP 4 — WHAT DO I NEED TO SUBMIT?
Gather these documents before applying to avoid delays. Required items are marked with ✓.
AVOID THESE PITFALLS
Learn from the most common mistakes that cause delays and rejections — so yours doesn't end up on this list.
Missing property line dimensions, incorrect setbacks, or failure to show existing structures are the #1 reason for plan correction notices in San Diego County.
Any addition over 100 sq ft requires a Title 24 report generated by certified software. Submitting without it triggers an immediate correction.
Building before the permit is issued results in a Stop Work Order, double fees, and may require demolition of completed work for re-inspection.
San Diego County requires the contractor's CSLB license number, expiration, and workers' comp coverage on every application.
Covering framing before the rough framing inspection, or burying plumbing without inspection, creates major issues during final inspection — or at resale.
CONTRACTOR REQUIREMENTS
What credentials must your contractor have in San Diego County?
All contractors performing work valued over $500 in California must hold a current CSLB license. Contractors must carry workers' compensation insurance for any employees. Most projects also require a performance bond.
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