🛖 Shed / Outbuilding
A detached, non-habitable outbuilding for storage, workshop, or studio use.
Permit requirements for Shed / Outbuilding differ by state and city. The table below summarizes the rule in each covered state — open a state for full detail, fees, and official sources.
| State | Permit? | Authority | Typical fee | Timeline | Go / No-Go | Key notes |
|---|---|---|---|---|---|---|
| California | Conditional | city | No fee under the exemption; a permit fee applies if over the threshold. | Over-the-Counter / same day where a permit is required. | Generally allowed | Larger or occupied/serviced sheds require a building permit. Check local setbacks and HOA rules. Exempt: One-story detached accessory structure ≤120 sq ft is exempt (CBC R105.2). |
| Texas | Conditional | city | No fee under the exemption; a permit fee applies if over the threshold. | Same day / Over-the-Counter where required. | Generally allowed | Larger sheds or those with plumbing/electrical need a building permit. Exempt: Dallas: utility building <200 sq ft needs no permit; generally a one-story detached structure ≤120 sq ft is exempt under the IRC. |
| Florida | Conditional | city | No fee under the exemption; a permit fee applies if over the threshold. | Same day / Over-the-Counter where required. | Generally allowed | Larger or serviced sheds need a building permit. Exempt: One-story detached accessory structure ≤120 sq ft is exempt (FBC R105.2). |
| New York | Conditional | city | No fee under the exemption; a permit fee applies if over the threshold. | Same day / Over-the-Counter where required. | Generally allowed | Larger or serviced sheds need a building permit. Exempt: One-story detached accessory structure ≤120 sq ft is exempt (RCNYS R105.2). |
| Pennsylvania | Conditional | city | — | — | Generally allowed | Larger sheds and any shed with utilities require a building permit. Pittsburgh and other cities follow the same UCC framework with local fee schedules. Exempt: Under 120 sq ft typically exempt under the PA UCC/IRC; Philadelphia exempts detached sheds 200 sq ft or less. |
| Illinois | Conditional | city | — | — | Generally allowed | Larger sheds and any shed with utilities require a permit. Confirm the threshold with your local building department. Exempt: Under ~120 sq ft typically exempt under the IRC; varies by municipality. |
| Ohio | Conditional | city | Columbus minimum permit fee $125 for permitted sheds. | — | Generally allowed | Larger sheds and any shed with utilities require a building permit. Cleveland and other cities follow the Ohio Residential Code with local fee schedules. Exempt: Under 120 sq ft exempt (Ohio RCO / Columbus). |
| Georgia | Conditional | city | Atlanta minimum permit cost $150 plus $25 fee for permitted sheds. | — | Generally allowed | Larger sheds and any shed with utilities require a building permit. Savannah and other cities follow the Georgia State Minimum Standard Codes with local fee schedules. Exempt: Under 120 sq ft typically exempt (IRC); Atlanta lists accessory shed structures as permitted. |
| North Carolina | Conditional | city | Valuation-based permit where required; verify with the city. | Simple permits often issued in 1–2 weeks. | Generally allowed | Small detached storage sheds are usually exempt, but adding electricity/plumbing or exceeding size thresholds triggers a permit. Raleigh lists sheds as accessory structures needing plans. Exempt: State IRC R105.2 exempts one-story detached accessory structures ≤200 sq ft. Charlotte exempts detached sheds <200 sq ft without electrical/plumbing. |
| Michigan | Conditional | city | Valuation-based where required; structures <200 sq ft often use a lower-compliance permit. | Often 5–10 business days; smaller sheds may be issued faster. | Generally allowed | Small detached storage sheds are usually exempt, but adding electricity/plumbing or exceeding 200 sq ft triggers a permit. Confirm setbacks with the city. Exempt: State R105.2 exempts one-story detached accessory structures ≤200 sq ft. Grand Rapids: <200 sq ft = Planning Accessory Structure Permit; ≥200 sq ft = building permit. |
| New Jersey | Conditional | city | Construction permit where required (valuation-based) plus zoning fee; verify with the city. | Often 1–2 weeks; zoning review may be required first. | Generally allowed | Most NJ towns require a zoning permit for any shed. Sheds 100–200 sq ft must sit on a 4 in gravel bed (N.J.A.C. 5:23-9.9) unless frost-protected. Over 200 sq ft needs a construction permit. Exempt: State UCC exempts sheds ≤200 sq ft, ≤10 ft tall, with no utility connections from a construction permit. Jersey City applies this 200 sq ft / 10 ft rule. |
| Virginia | Conditional | city | Building permit where required (valuation-based); Virginia Beach adds wind-design review for larger sheds. | Often 1–2 weeks; simple sheds may be issued at counter. | Generally allowed | Sheds ≤256 sq ft are exempt from a building permit but must meet zoning setbacks and HOA rules. Larger sheds need a permit and (in Virginia Beach) engineered anchoring for 115 mph wind. Exempt: State VUSBC exempts one-story detached sheds ≤256 sq ft (storage/utility). Virginia Beach exempts sheds ≤256 sq ft. |
| Washington | Conditional | city | Valuation-based when a permit is required; many small sheds are exempt. | Exempt sheds need no review; others often Subject-to-Field-Inspection. | Generally allowed | Lot-coverage and stormwater rules still apply even when a permit is not required. Exempt: Seattle: one-story detached accessory building <120 sq ft roof area on slab-on-grade exempt; Spokane <200 sq ft exempt. |
| Arizona | Conditional | city | Valuation-based; site-plan-only permits for small sheds in Tucson. | Small sheds often same-day/over-the-counter. | Generally allowed | Tucson is stricter than most of Arizona — even a tiny shed needs a permit there. Exempt: Phoenix: detached structures >200 sq ft require a permit; Tucson: all sheds require a permit regardless of size. |
| Massachusetts | Conditional | city | Valuation-based when over the size threshold. | Small sheds often exempt; larger sheds need plan review. | Generally allowed | Structures with plumbing, electrical, or gas connections require a permit regardless of size. Exempt: One-story detached sheds/playhouses ≤200 sq ft are exempt (780 CMR R105.2). |
| Tennessee | Conditional | city | Valuation-based when over the size threshold. | Small sheds often exempt; larger sheds need plan review. | Generally allowed | Structures with plumbing, electrical, or gas, or used as living space, require a permit. Exempt: One-story detached sheds ≤200 sq ft are exempt under the TN Residential Code. |
| Indiana | Conditional | city | — | — | Generally allowed | Detached one-story sheds below the local size threshold are generally exempt. Check your city’s residential code (e.g., Fort Wayne). Exempt: Many Indiana jurisdictions exempt one-story detached accessory sheds under ~120 sq ft; some cities use a higher threshold. |
| Missouri | Conditional | city | No fee under the exemption; a permit fee applies if over the local threshold. | Varies by municipality. | Generally allowed | Larger sheds or sheds with utilities require a permit; thresholds vary by city. Verify with your municipal building department. Exempt: Detached one-story accessory shed ≤120 sq ft is exempt under the locally adopted IRC R105.2. |
| Maryland | Conditional | city | — | — | Generally allowed | Detached accessory sheds below the local size threshold are generally exempt. Annapolis publishes shed building requirements. Exempt: Many jurisdictions exempt small detached sheds (commonly under ~120–200 sq ft). |
| Wisconsin | Conditional | city | No fee under the exemption; a permit fee applies if over the local threshold. | Varies by municipality. | Generally allowed | Because the UDC does not cover detached garages/accessory buildings, permit requirements are set locally. Verify with your municipal building inspection department. Exempt: Detached accessory buildings are NOT covered by the UDC, but municipalities may require a permit by ordinance; small sheds are often exempt. |