Do I Need a Building Permit?

Indiana Building Permit Requirements Overview

If you are planning a home improvement project in Indiana, one of the first questions you need to answer is whether a building permit is required. Permits exist to ensure construction meets safety codes, protects property values, and keeps homeowners safe. While the rules vary by county and municipality, Indiana follows the Indiana Residential Code (based on the International Residential Code), which provides a baseline for most jurisdictions across the state.

The general rule of thumb is simple: if the project involves structural changes, new electrical circuits, plumbing modifications, or adding habitable space, you almost certainly need a permit. Cosmetic work like painting, replacing flooring, or swapping out cabinet hardware does not require a permit.

Common Projects That Typically Require a Permit

• Room additions and garages -- any new enclosed or attached structure.
• Decks -- especially those over 30 inches above grade or attached to the house.
• Roof replacement -- required in nearly every Indiana jurisdiction.
• Basement finishing -- adds habitable space, triggers egress and electrical requirements.
• Electrical work -- new circuits, panel upgrades, or rewiring.
• Plumbing work -- moving or adding fixtures, water heater replacement in some areas.
• HVAC replacement -- furnace and AC changes typically require a mechanical permit.
• Pools -- both in-ground and above-ground pools over a certain size.
• Solar panels -- electrical permit required; some jurisdictions also require a building permit.
• Demolition -- tearing down structures usually requires a demolition permit.
• Fences over 6 feet tall -- height triggers permit requirements in most areas.
• Sheds over 200 square feet -- smaller sheds are often exempt.

Projects That Usually Do Not Require a Permit

• Interior painting and wallpaper
• Flooring replacement (same footprint, no subfloor changes)
• Cabinet and countertop replacement (no plumbing or electrical changes)
• Landscaping and gardening
• Small fences under 6 feet
• Small sheds under 200 square feet
• Like-for-like window replacement (same size opening, no structural changes)
• Siding replacement (same material, no structural changes)
• Minor driveway repairs

Consequences of Building Without a Permit

Skipping a required permit might seem like a way to save time and money, but the risks are real. Indiana jurisdictions can issue stop-work orders that halt your project mid-construction. You may face fines ranging from $100 to $1,000 or more per violation. Unpermitted work can also create serious problems when you try to sell your home, as buyers, lenders, and inspectors will flag the work. Perhaps most critically, homeowner's insurance may deny claims related to unpermitted work, leaving you financially exposed. For a detailed look at the risks, see our guide on building without a permit in Indiana.

How to Find Your Local Permit Office

Indiana has 92 counties, each with its own permitting process. Most counties handle permits through a planning and zoning department or a building commissioner's office. Cities and towns within those counties may have their own permit offices with additional requirements. The fastest way to find the right office is to search our county-by-county directory, which includes contact information, fee schedules, and links to online applications where available. You can also call your county courthouse and ask for the building department.

Many Indiana counties now offer online permit applications, making the process faster than ever. Some jurisdictions can issue simple permits (like roof replacements or water heater swaps) the same day. More complex projects involving plan review may take one to four weeks for approval.