Zoning in Sullivan County, Indiana: What It Means to Have No Countywide Ordinance

Indiana zoning is optional -- and Sullivan County never adopted it

Indiana's county zoning framework, under IC 36-7-4, is entirely optional -- a county has to affirmatively adopt a comprehensive plan and zoning ordinance for one to exist, and roughly 80 of Indiana's 92 counties have done so. Sullivan County has not. County commissioners have said so directly, in the specific context of discussing a major new development in the county: because Sullivan County has no zoning ordinance, a landowner has the right to sell land for essentially any purpose without clearing a zoning-district or rezoning review first.

It's worth being precise about what that does and doesn't change. There's no zoning-district map, no use classification, and no Board of Zoning Appeals variance process for unincorporated county land -- so a use change that would require a public rezoning hearing in a zoned Indiana county can proceed here without one. But zoning is not the only form of land-use regulation: building permits, health-department septic and well rules under statewide ISDH standards, and any subdivision-control ordinance or recorded plat restriction the county has separately adopted still apply. Indiana townships, worth noting explicitly, have no zoning authority at all anywhere in the state -- they handle fire protection and township assistance, not land use -- so the relevant line here isn't township versus county, it's simply whether the county itself ever adopted zoning, and Sullivan County didn't.

The Heartland Industrial Park: a live example of what that means

Potentia Inc.'s Heartland Industrial Park, a roughly 1,000-acre development site between County Road 400 West and the Merom Generating Station, is the clearest current illustration of unzoned land use in Sullivan County. The project is targeting a reported $65 billion in cumulative investment from tenants and partners by 2030, and AI cloud-computing firm Fluidstack has already detailed its own planned data-center campus within the park, aiming to begin operations in 2027. None of that required the rezoning public hearing, plan-commission review, or variance process that a project of this scale would trigger in a zoned Indiana county -- the land's conversion from its prior use to an industrial energy-and-data campus proceeded without that step precisely because there was no zoning ordinance to require it.

That doesn't mean the project came with no county-level agreement at all. Sullivan County commissioners negotiated a road-use agreement and a separate community-enhancement agreement directly with the developer: Potentia has committed $50 million in direct community-enhancement payments to Sullivan County and the surrounding Wabash Valley region, including a $4.5 million contribution split among the Brown Baggers School Food Program, the Sullivan County Park & Lake system, and the College Hall Meron Camp & Retreat Center, plus a 15-acre land donation to the county for a new fire station. Notably, reporting indicates Potentia has not sought or received any tax abatement for the project, meaning the site's full assessed value should generate property tax revenue for local schools and services from the outset -- a different structure than the abatement-heavy deals typical of large industrial projects in many zoned Indiana counties.

What buying near an unzoned megaproject actually means for you

For a buyer, land near Heartland Industrial Park carries a distinctive kind of uncertainty: because there's no zoning ordinance defining what's allowed nearby, a neighboring parcel's future use is genuinely harder to predict than in a zoned county, where at least the district classification tells you the menu of possible future neighbors. That cuts both ways -- it also means your own future use options on a nearby parcel are less constrained than they'd be under a zoning ordinance, since you likewise aren't limited to a fixed use-district's permitted list.

Residents near the project have already raised practical concerns worth checking directly before buying nearby: heavy construction and operational truck traffic on roads not originally built for that load, questions about local versus outside labor use during construction, and effects on shared utility capacity (water and electric) given the scale of the data-center campus. None of these are zoning questions, exactly -- they're the kind of infrastructure and nuisance considerations that a zoning ordinance's conditions and setbacks would otherwise have addressed formally, and in their absence here, checking them yourself with the county commissioners and utility providers is the closest substitute available.

• Confirm directly with the Board of Commissioners what county-level land-use tools do apply to a specific parcel (building permits, subdivision control, health-department rules) given the absence of zoning
• Check current road-use agreements and any weight restrictions on routes near Heartland Industrial Park before assuming normal rural road access
• Ask local utility providers about water and electric capacity if your parcel sits near the Merom Generating Station corridor, given the scale of nearby industrial demand
• Remember that land inside the City of Sullivan follows the city's own separate zoning ordinance -- confirm which jurisdiction actually governs before assuming county rules (or their absence) apply