Indiana Pole Barn Permit Requirements: Complete 2026 Guide

Usually yes, and from your city, town or county rather than from the state. A detached pole barn on a house lot is a Class 2 structure under Indiana Code § 22-12-1-5, which names an outbuilding such as a garage or a barn in terms. The state sets how it must be built, through the 2020 Indiana Residential Code, and leaves the permit to local ordinance; Indiana Code § 36-7-2-9 requires every local unit to require compliance with the state code either way. A building used in any part by the public, by three or more tenants or by someone acting as the employee of another is a Class 1 structure instead, and that needs a state design release before construction on top of whatever the locality requires. A genuine farm building can fall outside the state code entirely under § 22-12-1-4(c). Zoning is separate from all of it.

It depends on who uses it rather than on how it is built, and the answer decides nearly everything else on this page. Indiana Code § 22-12-1-5 makes an outbuilding for a one or two dwelling unit house, such as a garage or a barn, a Class 2 structure, unless any part of it is regularly used as a Class 1 structure. Indiana Code § 22-12-1-4 makes it a Class 1 structure if it is occupied or otherwise used in any part by the public, by three or more tenants, or by one or more persons who act as the employees of another. So the same building can change class with its use: store your own equipment in it and it is Class 2; run a business out of it with an employee, or let the public in, and it is Class 1, which brings the Indiana Building Code and a state design release with it. If you are not sure which side of that line you are on, the Indiana Department of Homeland Security plan review section will tell you before you build rather than after.

It is at Indiana Code § 22-12-1-4(c). An earlier version of this page cited § 36-7-9-5, which is a section of the Unsafe Building Law about orders to vacate, repair or demolish a building and says nothing about agriculture at all. The real provision takes a building out of the definition of a Class 1 structure where it is intended to be or is used only for an agricultural purpose on the land where it is located, and is not used for retail trade or is a stand used for retail sales of farm produce for eight or less consecutive months in a calendar year. The Indiana Department of Homeland Security publishes a four-question test for applying it and says that where the exemption applies the building is not a Class 1 structure, is not required to obtain a design release, and is not required to be constructed in conformance with the building code. Three things to hold on to. The retail trade condition is part of the statute and the old wording here left it out. The building has to stand on the land where the farming actually happens, which the department calls the farm rule. And an exemption from the state building code is not an exemption from county or township zoning.

No Indiana figure exists, because the permit is priced locally, so this guide prints no range where it used to print four. One sourced example: the Consolidated City of Indianapolis charges $300.00 for a structural permit on an accessory Class 2 structure between 200 and 1,000 square feet, with $25.00 for each additional 500 square feet, a $150.00 plan review fee for a new accessory Class 2 structure under 1,000 square feet, and a $40.00 additional service fee on the application (§ 131-501 of the Revised Code, as amended with effect from 1 January 2026). Your own city or county will have an entirely different schedule, and the Indianapolis figures are stated in the ordinance as maximum allowed fees. The one statewide Indiana fee is not a building permit at all: a state design release costs a $75 filing fee plus a processing fee of $75 minimum, so $150 minimum, and only a Class 1 structure needs one.

Your city, town or county issues the building permit. A Class 1 structure needs a design release, which the state building commissioner issues, or a city, town or county certified under that section issues (IC 22-15-3-1); that is not a building permit. Since 1 January 2026 there has been a second route for the review itself: Indiana Code § 36-7-2-9.1 says that a city, town or county requiring a building permit, plan review or inspection for the construction of a Class 2 structure shall allow the plan review or inspection to be conducted by a private provider who is a registered architect, a registered professional engineer or a certified building official, and an applicant may choose that route under Indiana Code § 36-7-2.5. One more provision is worth knowing if an inspection goes against you: Indiana Code § 36-7-2-9.5 requires the official to identify the specific feature that is noncompliant and the specific law, order or interpretation it breaches, naming the edition, chapter and section.

Nobody publishes a local answer you could hold a department to, so this guide no longer prints the week ranges it used to. There is a statutory clock, but it sits on the state design release that only a Class 1 structure needs: under Indiana Code § 22-15-3.2 the Indiana Department of Homeland Security has ten business days on a complete application either to notify the applicant that a design release will be issued or to notify them that it will run a plan review, then twenty business days to approve the plans or call for corrections where it does review them, and ten business days on each round of corrections, with the release falling due if it misses a deadline. For a Class 2 barn, ask the local department what its queue is running, and ask the zoning office separately.

Yes, and on farm ground it is a real risk rather than a scare story, although the specific claim this page used to make was not sourced. Two provisions of the Drainage Law do the work. Indiana Code § 36-9-27-72 says that a private crossing, control dam or other permanent structure may not be placed over or through an open drain unless the county surveyor approves the plans and specifications first. Indiana Code § 36-9-27-46 covers what happens when a regulated drain is obstructed or damaged, including by filling, excavating or an unauthorized structure: the county surveyor removes the obstruction and repairs the damage, and where an owner of affected land caused it, the surveyor first notices the owner to put it right within ten days, with the cost capable of being added to the next annual assessment against that land. Whether a tile survey is wanted before a permit is a question for your county surveyor, who holds the drain records, and asking is cheaper than a repair assessment.