Boone County (county seat: Lebanon) covers 423 square miles with a population of 70812. Official county website: boonecounty.in.gov/offices/area-plan/. This page summarizes the verified building-regulation posture of unincorporated Boone County land; the full 10-dimension scorecard with every source receipt lives on its Freedom Map card.
A building permit must be obtained before beginning construction of any residential building within the Boone County Area Plan Commission's jurisdiction, and the APC is a well-staffed, growth-oriented office applying the state code plus detailed county standards — the toughest permitting environment in this batch.
The claim above is source-verified (official statute/county documents; URL, direct quote, and date on the full card). Method: how we verify.
No county's freedom erases state law: septic/wastewater permitting (health authority), well permits and water rights (state engineer/DNR), floodplain rules with federally connected financing, and — in some states — state-run electrical inspections. The full card details which of these bite in Boone County and how hard.
The score describes unincorporated county land only. Inside Boone County, incorporated municipalities set their own, usually stricter, rules — including: City of Lebanon — own plan commission/building administration, Town of Zionsville — own planning and zoning, Town of Whitestown — own planning and zoning, Town of Thorntown, Town of Advance, Town of Jamestown, Town of Ulen. Land inside town limits follows town code.
Building rules are the first question people ask about Boone County — and the easiest one to answer. They're rarely the one that decides it. The full card grades all ten dimensions, every claim quoted from the county's own code.
What the Boone County card answers that this page doesn't:
It's a real map. Click any county in the country and see how it grades — that part costs nothing, and you can compare Boone County against its neighbors before you spend a dollar.
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Last verified 2026-07-10 · Not legal advice — confirm current rules with the county, the state, and a professional before buying or building.