Do I Need a Permit to Build a Shed in San Diego, CA?

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Project type City Shed size (sq ft) Stories Electrical work planned? Plumbing planned?

Conditions

Full permit conditions

All 7 conditions for San Diego shed permits.

Under California Residential Code (CRC) Section R105.2, one-story detached accessory structures used as tool or storage sheds with a floor area of 120 square feet or less are generally exempt from the DSD building permit requirement. Sheds larger than 120 sq ft, multi-story structures, and sheds with utility work require a permit.
Even when a shed qualifies for the 120-square-foot CRC building-permit exemption, San Diego Municipal Code zoning rules and setback requirements still apply. Sheds must comply with SDMC residential zone accessory structure regulations for setbacks from property lines, yard location (typically rear yard), height limits, and lot coverage.
Electrical work, plumbing, and mechanical work each require separate DSD trade permits regardless of shed size. A shed that is building-permit-exempt still needs an electrical permit if wiring is added.
Properties in the Coastal Overlay Zone require a Coastal Development Permit (CDP) for accessory structure construction, even when the shed would otherwise be building-permit-exempt. The CDP is issued by the city or California Coastal Commission depending on the parcel's specific coastal zone designation.
San Diego is in Seismic Design Category D. Permitted sheds must include CBC-compliant seismic design — footing reinforcement, anchor bolts, and lateral connections. Sheds on hillside lots or within mapped Hillside Review overlay areas may additionally require a Hillside Development Permit (HDP).
Properties on the San Diego Historical Resources Board inventory or within a Designated Historical Site overlay may require DSD Historic Resources review before installing a shed visible from a public right-of-way.
Prefabricated and site-built sheds follow the same CRC 120-square-foot permit threshold. SDMC setback and yard requirements apply to both. Verify parcel-specific limits using the San Diego Permit Portal before purchasing a prefab unit.

Fees

Estimated city fees

Baseline for a simple permitted shed: $225–$650 estimated combined fees (plan check + permit) for a permitted shed in San Diego; sheds 120 sq ft and under with no utility work are generally building-permit-exempt under CRC R105.2, but SDMC setback and yard rules still apply; coastal zone sheds always require a CDP

Fee	Amount	Notes
DSD building permit fee (sheds over 120 sq ft)	$150–$450 (estimated)	San Diego DSD fees are based on project valuation. A simple shed in the 120–400 sq ft range typically falls in this window. Larger or more complex sheds cost more. Verify at sandiego.gov/development-services.
Plan review fee	$75–$200 (estimated)	Assessed separately. Combined plan check and permit fee for a typical permitted shed runs $225–$650.
Electrical / plumbing / mechanical trade permits	$100–$300 each (estimated)	Each utility trade in a shed triggers a separate DSD permit and inspection, even when the shed itself is building-permit-exempt.
Coastal Development Permit (if applicable)	$200–$600+ (additional)	Required for any shed construction in the Coastal Overlay Zone, regardless of shed size or permit exemption status.
State SMIP surcharge	0.013% of permit valuation	California Strong Motion Instrumentation Program surcharge applies to all California building permits.

Documents

Required documents

DSD permit application submitted through the San Diego Permit Portal at sandiego.gov/development-services or in person at 1222 First Avenue for any shed exceeding the 120 sq ft exemption or requiring structural review.
Scaled site plan showing property lines, existing structures, setback dimensions, proposed shed location, footprint, and dimensions — required to confirm SDMC yard setback and lot-coverage compliance.
Floor plan and elevations showing shed dimensions, wall heights, roof pitch, door and window openings, and intended use.
Foundation details appropriate to shed size and site conditions — slab, concrete piers, or wood runners — demonstrating CBC SDC D seismic compliance (anchor bolts, hold-downs) for sheds over 120 sq ft.
Structural drawings or calculations for sheds over 120 sq ft addressing seismic lateral loads under CBC SDC D.
Hillside Development Permit (HDP) application materials if the property has slopes exceeding 25 percent or is in a designated Hillside Review overlay area.
Coastal Development Permit application and documentation for properties in the Coastal Overlay Zone.
DSD Historic Resources review confirmation or clearance if the shed is on a parcel on the Historical Resources Board inventory or within a Designated Historical Site overlay.
Manufacturer's installation instructions and specifications for prefabricated shed kits when applicable.
Trade drawings and load schedules for any electrical, plumbing, or mechanical work being added to the shed.

Timeline

Typical timing

Plan review: 10–25 business days (standard); potentially same-day OTC for qualifying simple shed projects with complete plans
Total cycle: 3–8 weeks from application to final inspection for permitted sheds

Coastal Development Permit review runs on its own track and can add several weeks for properties in the Coastal Overlay Zone. Hillside overlay, historic preservation review, and CBC SDC D structural correction rounds extend the timeline. Sheds within the 120 sq ft exemption with no utility work can proceed after confirming SDMC setbacks, with no DSD plan review required.

Process

How the permit process works

Apply the 120-square-foot CRC exemption as the first filter Under CRC Section R105.2, a one-story storage or tool shed at 120 square feet or less is generally exempt from the DSD building permit requirement. Larger sheds, multi-story structures, and any shed with electrical, plumbing, or mechanical work require a permit. Even exempt-sized sheds must comply with SDMC residential zone setbacks, rear-yard placement rules, and lot-coverage limits.
Confirm SDMC setbacks and lot-coverage for your zone Use the San Diego Permit Portal or Development Services parcel lookup at sandiego.gov to identify your zone's rear-yard setback, accessory structure height limit, and lot coverage allowance. In most residential zones, sheds must be placed in the rear yard with required setbacks from property lines. Contact DSD's public counter at 1222 First Avenue to confirm specific setback requirements before purchasing or placing a prefab shed.
Screen for coastal zone, hillside, and historic overlays Check whether your property is in the Coastal Overlay Zone — coastal zone sheds require a CDP regardless of shed size. Verify whether the lot has slopes exceeding 25 percent that could trigger a Hillside Development Permit. For properties on the Historical Resources Board inventory or in a Designated Historical Site overlay, contact DSD's Historic Resources section to determine if additional review is required.
Identify utility scope and trade permit needs Decide whether the shed will have electrical, plumbing, or mechanical work. Each utility trade requires a separate DSD permit and inspection regardless of shed size. Plan for trade permits even when the shed itself is building-permit-exempt under CRC R105.2.
Prepare plans and CBC SDC D details for permitted sheds For sheds over 120 sq ft, prepare a site plan, floor plan, elevations, and foundation details. Seismic SDC D requirements apply — anchor bolts, hold-downs, and lateral bracing must be addressed. Prefab sheds should include manufacturer installation documents showing anchorage methods. Hillside sites may require a licensed geotechnical engineer.
Submit through the San Diego Permit Portal or at 1222 First Avenue Apply online at the San Diego Permit Portal or in person at DSD, 1222 First Avenue. Simple shed projects with complete drawings may qualify for express (over-the-counter) same-day review. Standard applications enter DSD's electronic plan review queue.
Clear plan review comments, pay fees, and complete inspections DSD plan reviewers verify setback compliance, structural/seismic design, and overlay clearances. After approval, pay fees and keep the permit accessible on site. Schedule inspections through the Permit Portal. Typical shed inspections include a footing inspection, framing inspection, and final. Trade inspections are scheduled separately.

Code basis

What San Diego reviews against

California Residential Code (CRC) Section R105.2 (work exempt from permit — one-story detached accessory structures not exceeding 120 sq ft) as adopted under the San Diego Municipal Code; SDMC residential zone accessory structure regulations (rear yard placement, setbacks, height limits, lot coverage); 2022 California Building Code (CBC) Title 24 for structural and seismic requirements (Seismic Design Category D); San Diego Coastal Overlay Zone (CDP required for coastal zone sheds); Hillside Development Permit process for lots with slopes exceeding 25 percent.

Residential permit page San Diego permit portal

If you skip the permit

What can go wrong

San Diego DSD can issue a stop-work order if a shed that needed a permit is built without one.
A shed placed in violation of SDMC setbacks or lot-coverage limits can trigger a planning enforcement action requiring relocation or removal.
After-the-fact DSD review can require opening walls or exposing the foundation to verify structural and seismic compliance.
Coastal zone shed construction without a CDP creates California Coastal Commission enforcement exposure; removal orders are possible.
Unpermitted electrical work in a shed creates fire and shock hazards that go unverified without DSD trade inspections.
California real estate law requires disclosure of unpermitted improvements — an unpermitted shed larger than the exemption threshold must be disclosed in a sale.

FAQ

Common San Diego shed permit questions

Do I need a permit to build a shed in San Diego, CA?

Usually not if the shed is 120 square feet or less. Under California Residential Code Section R105.2, a one-story detached storage or tool shed at 120 square feet or less is generally exempt from the DSD building permit requirement. Larger sheds, multi-story structures, and any shed with utility work require a permit. But the building-permit exemption does not eliminate SDMC compliance — rear-yard setbacks, lot-coverage limits, and accessory structure height rules still apply. And coastal zone properties always need a Coastal Development Permit.

What is the largest shed I can build without a permit in San Diego?

The California CRC exemption threshold is 120 square feet for a one-story detached accessory structure. That threshold applies in San Diego. But SDMC setbacks, rear-yard placement requirements, lot-coverage rules, and accessory structure height limits apply to all sheds regardless of size. Confirm your parcel's specific requirements at sandiego.gov before ordering a prefab or pouring footings.

Does the Coastal Overlay Zone affect shed permitting in San Diego?

Yes, significantly. Properties in the Coastal Overlay Zone — including Pacific Beach, Mission Beach, Ocean Beach, La Jolla, and other coastal communities — require a Coastal Development Permit for shed construction, even when the shed is 120 sq ft or smaller and would otherwise be building-permit-exempt. Contact San Diego Development Services to determine whether the city or the California Coastal Commission has permit authority for your specific parcel.

Does San Diego's seismic zone affect shed permitting?

Yes. San Diego is in Seismic Design Category D. For permitted sheds (over 120 sq ft), structural drawings must address seismic lateral loads — anchor bolts, hold-downs, and lateral bracing per 2022 CBC requirements. Small exempt-sized sheds are not subject to DSD plan check, but permitted sheds must have foundations and framing designed for SDC D.

Does adding electricity to my San Diego shed require a permit?

Yes. Adding wiring, outlets, lighting, or a subpanel to a shed requires a separate DSD electrical permit and inspection, even when the shed itself is 120 square feet or under and otherwise building-permit-exempt under CRC R105.2.

How much does a San Diego shed permit cost?

For a shed requiring DSD review, expect roughly $225–$650 in combined plan check and permit fees depending on size and scope. Sheds within the 120 sq ft CRC exemption with no utility work incur no building permit fee. Coastal zone sheds add CDP fees. Verify current amounts at sandiego.gov/development-services.

Sources

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