What's Required in Indianapolis
- Improvement Location Permit (ILP) required for all accessory structures
- Structural building permit required for any shed exceeding 200 square feet
- Must maintain setbacks from property lines (typically 3–5 feet; check specific zoning)
- Max height for accessory structures is generally 15 feet in residential zones
- Sheds under 120 sq ft without a foundation may be exempt from structural permits but still need ILP
- Any electrical or plumbing work in the shed ALWAYS requires trade permits
What Size Shed Needs a Permit in Indianapolis
Whether you need a building permit for a shed in Indianapolis usually comes down to size. In Indianapolis, the cutoff is 200 square feet: a simple one-story shed at or under that size generally doesn’t need a building permit, while anything that exceeds it does. A popular 10x12 shed (120 sq ft) comes in under the limit, so it typically doesn’t need a building permit. Larger sheds, and any shed with electrical, plumbing, or a permanent foundation, almost always need a permit regardless of footprint.
Building a Shed Without a Permit in Indianapolis
Even when a shed is small enough to skip a building permit in Indianapolis, “no permit” doesn’t mean “no rules.” A permit-exempt shed generally must stay at or under the 200-square-foot limit, sit on a non-permanent base (sheds on skids or a gravel pad are treated more leniently than those on a poured foundation), and have no electrical or plumbing run to it. Crucially, zoning setbacks still apply — your shed usually has to sit a minimum distance from property lines and other structures, and that holds even for a permit-free shed. Confirm both the size exemption and the setback distance with the Indianapolis Department of Business and Neighborhood Services before you build.
How to Get a Shed Permit in Indianapolis
Step 1: Size Check
Confirm if your shed exceeds 200 sq ft for structural permit needs.
Step 2: Site Plan
Draft a site plan showing distances from property lines and house.
Step 3: Submit online
Apply for an ILP on the Accela portal ($108 fee).
Step 4: Pay Fees
Pay total fees ($140 minimum) via the ACA portal.
Step 5: Final Review
Schedule a final structural inspection if a building permit was required.