Do I Need a Permit to Build a Shed in Mississippi?

Mississippi's Opt-Out Patchwork

Mississippi's shed permit rules are shaped by a fundamental fact about the state: while the legislature mandated statewide building code adoption in 2014, it also allowed municipalities and counties to opt out of code enforcement. Many have done so.

As of recent counts, over one-third of Mississippi's municipalities and nearly half its counties have not adopted the statewide codes. In these areas, no building permits are required for residential construction — including sheds. The exception is the five Gulf Coast counties (Hancock, Harrison, Jackson, Pearl River, and Stone), which were required to adopt stricter codes after Hurricane Katrina in 2005 and cannot opt out.

This creates a patchwork where a homeowner in Gulfport needs a building permit, wind load certification, and flood zone compliance for a shed, while a homeowner in a rural county 100 miles north may not need any permit at all. The first step for any Mississippi homeowner is to determine whether your jurisdiction enforces the building code. For a national perspective, see our complete guide to shed permits.

The 120-Square-Foot Threshold

In jurisdictions that enforce the statewide code, the standard exemption follows the International Building Code: one-story detached accessory structures used as tool and storage sheds, playhouses, and similar uses are exempt from a building permit when the floor area does not exceed 120 square feet and the height above grade does not exceed 12 feet.

Vicksburg's building department provides a clear example: a building permit is required for any storage building over 120 square feet. Sheds under 120 square feet don't require a building permit but still need approval from the Zoning Administrator to verify setbacks and placement. No storage sheds are allowed in a front setback.

This 120-square-foot threshold is the standard IRC/IBC exemption — notably lower than the 200-square-foot threshold that many states have adopted through local amendments. In Mississippi, the 120-square-foot number is the default.

How Five Mississippi Cities Handle Shed Permits

Jackson: All Sheds Need a Permit, but Flexible on Foundations

Jackson — the state capital — requires a building permit for all storage buildings. But the city offers a practical flexibility that many cities don't: a foundation is not required for an accessory building less than 400 square feet that is not heated for habitable space.

This means a 300-square-foot storage shed on concrete blocks or skids doesn't need a poured foundation in Jackson. The foundation exemption only applies to non-habitable storage buildings — any shed with heating, cooling, or living space requires a full foundation.

Jackson's permit application requires a building plan and site plan showing lot size, property lines, and the location of all existing and proposed buildings, approved by both the Building & Inspection Department and the Zoning Administrator. The shed's height cannot exceed the height of the main dwelling.

Gulfport: Coastal Code Enforcement

Gulfport sits in Harrison County — one of the five coastal counties that must enforce the building code. The city uses a square footage-based fee calculation for permits, making costs predictable. The Building Code Services department handles permit applications through an online portal.

Gulfport's coastal location means all sheds that require a permit must meet wind load requirements for the local design wind speed (130–150+ mph depending on exact location and exposure). Properties in FEMA Special Flood Hazard Areas — which cover significant portions of the city — must submit permit applications in person with required flood zone documentation. Online applications are only accepted for properties outside flood hazard areas.

Biloxi: Post-Katrina Standards

Biloxi enforces the same coastal code as Gulfport. The city adopted the IBC and IRC with amendments focused on hurricane resilience following the devastation of Hurricane Katrina in 2005. All accessory structures requiring permits must meet wind uplift standards, and properties in flood zones face additional requirements.

Biloxi's flood zone requirements are particularly extensive. Properties in the SFHA must comply with the city's floodplain management ordinance, which may require elevation above the Base Flood Elevation, flood openings, and in some cases, an Elevation Certificate.

Hattiesburg: Interior Mississippi

Hattiesburg is inland, away from the coast's strictest requirements. The city follows the standard 120-square-foot threshold and requires zoning compliance for all accessory structures. Without the wind and flood complications of the coastal counties, the permitting process in Hattiesburg is more straightforward.

Permit fees are valuation-based, typically $50–$150 for a standard shed. Review takes 5–10 business days.

Southaven: Memphis Suburb

Southaven — part of the Memphis, Tennessee metro area in DeSoto County — follows the 120-square-foot standard. The city's proximity to Memphis means many homeowners are familiar with Tennessee's permitting culture, but Mississippi's rules apply. DeSoto County enforces the statewide code, and standard setback rules apply.

The Gulf Coast: Wind and Flood

The five coastal counties face the strictest shed permit requirements in Mississippi. These counties cannot opt out of code enforcement, and the codes they enforce include hurricane-specific amendments.

Wind requirements: Design wind speeds along the Mississippi Gulf Coast range from 130 to 150+ mph depending on the exact location and exposure category. Sheds that require a permit must be designed for these wind loads. This includes proper anchoring, roof-to-wall connections, and in some cases, wind load certification from a licensed engineer for metal and pre-engineered structures.

Flood requirements: Large portions of the coastal counties sit within FEMA-designated Special Flood Hazard Areas. Sheds in these zones must comply with the local floodplain management ordinance:

• Elevation to or above the Base Flood Elevation, or construction with flood openings
• Anchoring to resist flotation, collapse, and lateral movement
• In Velocity Zones (V Zones) near the coast, pile or post foundations may be required

The NFIP requirements apply regardless of whether the shed is under or over 120 square feet. Even a small shed on a flood zone property may need flood zone compliance review.

Northern Mississippi: Seismic Considerations

Northern Mississippi sits near the New Madrid Seismic Zone — one of the most significant seismic zones in the eastern United States. While the seismic risk primarily affects larger structures, commercial buildings in northern Mississippi may face seismic design requirements.

For residential sheds, the seismic risk is minimal — standard construction practices and proper anchoring are sufficient. But homeowners in the Southaven, Olive Branch, and Tupelo areas should be aware that the seismic zone exists and that the building code's structural provisions account for it.

Opt-Out Areas: What Still Applies

Even in municipalities and counties that have opted out of the statewide building code, some regulations still apply:

• Zoning ordinances — if the jurisdiction has adopted zoning, setback and placement rules may still govern where you can put a shed, even without a building permit requirement
• FEMA flood zone requirements — the National Flood Insurance Program applies regardless of local code adoption. Properties in flood zones must comply with floodplain management regulations to maintain flood insurance eligibility
• Electrical code — some jurisdictions enforce electrical codes independently of the building code
• Septic system clearance — the Mississippi State Department of Health regulates septic systems, and sheds must maintain clearance from septic components regardless of local code status

Opt-out status doesn't mean no rules — it means no building permit process. The practical risks of building without code compliance (structural failure, insurance denial, sale complications) remain.

Contractor Licensing

Mississippi's contractor licensing threshold is relatively high: the Mississippi State Board of Contractors requires a license only for residential projects over $50,000 and commercial projects over $100,000. Most shed projects fall far below these thresholds, so a contractor's license is not typically required for shed construction.

This is different from states like Alabama, South Carolina, or Florida, where all residential construction must be done by a licensed contractor (with homeowner exemptions). In Mississippi, the licensing requirement is cost-based, not scope-based.

HOA Restrictions

Mississippi's growing suburban areas — particularly the DeSoto County suburbs of Memphis (Southaven, Olive Branch, Horn Lake), the Jackson metro, and the Gulf Coast communities — have an increasing number of HOA-governed developments. Common restrictions include material and color matching, placement in rear yards only, and architectural committee approval.

Consequences of Building Without Required Permits

In jurisdictions that enforce the building code, building without a required permit can result in:

• Fines and penalties — stop-work orders and retroactive permit fees
• Forced removal if the shed violates zoning, flood zone, or wind load requirements
• Insurance complications — damage to unpermitted structures during a hurricane may not be covered, particularly in the coastal counties
• Sale complications — increasingly common as Mississippi's real estate market professionalizes

In opt-out areas, the consequences are limited to zoning violations and flood zone non-compliance. But the practical risk of building a shed that doesn't meet code — particularly in hurricane-prone coastal areas — is real regardless of whether a permit is required.

Permit fees in Mississippi are modest — $50–$200 for most residential sheds. The consequences of non-compliance far exceed the cost.

If you're also planning a garage or carport alongside your shed, each structure is permitted separately and must comply with setback and lot coverage requirements.

For an overview of all building permit requirements in Mississippi — including decks, fences, pools, and more — see our complete Mississippi building permit guide.