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Is a Data Center Coming to Your Dayton Neighborhood? Here's What Buyers Need to Know

August 7, 2026 · 11 min read · By Jenna Gray

Two years ago, nobody house-hunting in the Miami Valley was asking about data centers. Today, it might be the single most important question you're not asking before you sign a contract.

In the last few months alone, Amazon has proposed a $5 billion, 601-acre data center campus just south of Trenton, on top of a project it already has running in Sidney, and a third moving through approvals in Wilmington. Add in Piqua, Preble County, Hamilton, and now reportedly Fayette County, and the Dayton region has quietly become one of the more active data center corridors in Ohio, which itself ranks sixth in the nation for data center count (Dayton Daily News).

Here's what's actually happening, why it matters to your home value and your power bill, and how our local communities are responding, because the answer looks different depending on which zip code you're standing in.

The Numbers Behind Dayton's Data Center Boom

Statewide, Ohio data centers that have already received tax breaks reported $27.2 billion in capital investment in 2025. The sales tax exemptions attached to those projects totaled $1.6 billion, though, more than ten times what state officials originally projected. That gap got large enough that Governor Mike DeWine ordered a pause on new data center tax exemption requests in late May, while a legislative committee studies the numbers (Dayton Business Journal).

Locally, the pipeline is stacking up fast:

  • Trenton: Amazon Web Services is negotiating a $5 billion, 18-building campus on 601 acres, while Prologis is already building a separate billion-dollar, four-building project nearby known as "Project Mila" (Dayton Business Journal; Dayton Daily News)
  • Sidney: Amazon's $3 billion "Project Galaxy" (Data Center Map)
  • Wilmington: a proposed $4 billion, 471-acre Amazon project off U.S. 68, currently tied up in federal court (more on that below)
  • Piqua: a planned data center campus inside a new 607-acre business park
  • Preble County: 300 acres of farmland proposed for rezoning
  • Hamilton: a 240-megawatt proposal currently paused over power capacity concerns

Add it up and Amazon alone has roughly $12 billion committed or proposed within a 40-minute radius, before counting Prologis, Piqua, or anything still in the rumor stage.

The Part Nobody Sees Coming: Power Lines and Land Rights

Data centers don't just need land. They need an enormous, constant supply of electricity, and that means new transmission infrastructure that can cross property having nothing to do with the project itself.

This is now a live legislative fight in Ohio. A business group called the Ohio Business Roundtable has proposed changing the state's eminent domain law to allow "deposit and build," letting a utility begin construction on private land before a court has settled what the owner is owed. The Ohio Farm Bureau is pushing back hard, warning it would weaken the few protections landowners currently have (Ohio Capital Journal).

It's not hypothetical. Near Bowling Green, a farming family, the Luidhardts, refused to sell land for a natural gas pipeline tied to a Meta data center, and the developer pursued eminent domain anyway. The family has, for now, pushed the project onto a different route, but only after a fight most homeowners never see coming until the letter arrives (The Cool Down).

The good news: Ohio's Supreme Court, along with Michigan's and Oklahoma's, has already ruled that private property can't be seized purely to hand it to another private company for economic development. That's a real legal ceiling other states don't have. "Deposit and build" would test the edges of it, which is exactly why it's worth watching if you're buying acreage anywhere near a proposed transmission corridor.

Your Power Bill: What's Real and What's Regional

If you're an AES Ohio customer, your bill has probably crept up, and you're not imagining it. Some of that has nothing to do with any single data center. Dayton sits inside the PJM grid, a multi-state wholesale power market, and PJM's benchmark capacity price jumped 833% between the 2024–25 and 2025–26 delivery years, with another 22% added for 2026–27, a spike driven in large part by data center demand across PJM's 13-state footprint (Dayton Daily News).

AES Ohio itself doesn't generate power. It only transmits and delivers it, so its share of your bill is smaller than the headlines suggest. Under a settlement moving through state regulators, a typical household would see roughly a 1% to 1.5% annual increase through 2029, a few dollars a month. Critically, that same settlement creates a separate rate class for data centers, requiring them to cover the full cost of any transmission upgrades their project needs, plus a share of existing system costs (Yahoo News / Dayton Daily News). It's regulators trying to keep the data center bill off the average homeowner's bill, though whether that holds as more projects come online is the open question.

Water: The Reason Dayton Said No

Cooling servers takes a staggering amount of water, and in the Miami Valley that question lands differently, because much of the region sits above the Great Miami Buried Valley Aquifer, one of the most productive underground water sources in the country and the drinking water supply for a huge share of local residents.

It's a big part of why the city of Dayton banned data centers outright this year through a zoning change.

"We wanted to be ahead of anyone approaching us. Right now, we don't see any justification for a data center."

Dayton City Commissioner Darryl Fairchild, to WDTN

Zoning official Jeff Green added that the drain on resources, water included, simply wasn't worth it for the limited industrial space the city has left (WDTN).

Does It Actually Hurt Home Values?

This is the question everyone actually wants answered, and the honest response is: it depends entirely on how close "near" is.

A 2025 George Mason University study of Northern Virginia, the nation's largest data center market, found homes closer to data centers sold for more, on average. But researchers caution that's correlation, not causation: data centers get built where infrastructure, jobs, and amenities already exist, not the other way around. Realtor.com's own August 2026 study of 43 zip codes found no statistically significant price difference nationally, though it's early data (only two years' worth) and doesn't include Texas, one of the biggest data center states, because it doesn't publicly disclose sale prices (Realtor.com).

Closer to home, a national housing publication actually interviewed a Cincinnati-area agent about our own Trenton market. Her take: she hasn't had a single buyer walk away from a purchase over the proposed data center. The real friction is residents who feel blindsided, not buyers getting cold feet. Trenton's median list price currently sits around $282,500, actually below the greater Cincinnati-Middletown median of $399,000 (HousingWire).

Zoom into the homes immediately adjacent, within a quarter mile of an operating facility, and the picture changes. That's where the 24/7-industrial-neighbor problems live: constant low-frequency humming, night lighting, truck traffic. One Michigan homeowner measured his ambient noise rising from a baseline of 52 decibels to a steady 61, spiking to 78 some nights. In Virginia, one family told a reporter they moved their newborn's crib to the basement because the vibration from a nearby facility was that disruptive (Newsweek).

Those are extremes, not the norm, but they happen to the handful of homes closest to the fence line, and a nearby data center is generally considered a "material fact" a seller should disclose. Should isn't always did. Verify it yourself.

One Region, Five Very Different Answers

What makes this genuinely confusing for buyers is that there's no single "Dayton region policy" on data centers. The response changes by city, sometimes by township:

  • Dayton passed a zoning change banning data centers citywide, full stop.
  • Urbana (Champaign County) passed its own restrictive ordinance and is now facing a lawsuit from a developer challenging it.
  • Wilmington (Clinton County) is home to the most dramatic fight in the region: ten families, led by resident Jessica Sharp, sued the city after Amazon's $4 billion proposal moved through zoning changes they say were never properly noticed. After three days in federal court, a judge agreed and ordered the city to redo the rezoning, the data center use rules, and even the generator noise ordinance. Sharp says the group has already spent about $47,000 in legal fees, backed by a GoFundMe (WCPO).
  • Trenton is negotiating rather than fighting outright. A resident group called W.A.T.E.R. (Woodsdale and Trenton Environmental Resistance) is pushing for transparency and a pause, while the city weighs tax-increment financing to protect school funding.
  • Piqua has welcomed its project with open arms, pairing a planned data center campus with a separate $12 million historic-building renovation expected to bring 200 jobs.

Five cities, five different postures. Your county line tells you almost nothing. You have to check the actual municipality.

The Jobs Question, Honestly Answered

The pitch for these projects is almost always jobs, and the real numbers rarely live up to the billion-dollar headline. One recent Ohio data center project received a $4.5 million tax break in exchange for 10 permanent jobs. Ball State economist Michael Hicks has found the net employment effect of a typical data center runs about 10% of what a single Walmart Supercenter adds locally, and research from the Hamm Institute for American Energy shows large hyperscale campuses often operate with as few as 20 to 30 permanent staff (Dayton Business Journal).

Where the real money shows up is construction. Bobby Angst of IBEW Local 648, which covers Butler and Warren counties, estimates the build-out of these projects could mean roughly $200 million in wages and benefits for tradespeople, substantial, but temporary.

Before You Buy: A Quick Checklist

If you're purchasing anywhere in the region right now, especially outside a dense subdivision, a few extra steps are worth the time:

  1. Pull current and proposed zoning from the township or county. Ask what's pending, not just what's on the books today.
  2. Ask about moratoriums or new ordinances, and find out when they expire. Dayton, Urbana, and Wilmington are all headed in different directions right now.
  3. Ask about planned transmission lines and utility easements, even miles from any known data center site. That's where eminent domain risk actually shows up.
  4. Drive the area at night. Data centers run 24/7; the hum and lighting are a different story after dark.
  5. Get it in writing. Ask the seller directly whether they're aware of any planned data centers or large industrial projects nearby, and don't rely on the disclosure form alone.

Ohio is a "buyer beware" state, which puts a lot of this responsibility on you. Working with an agent who's actually tracking these projects, county by county, makes a real difference. This changes month to month.

The Bottom Line

None of this is a reason to avoid buying in the Dayton region. It's still one of the most affordable places in the country to own a home, and this same investment wave is part of why the local economy is heating up. It's simply a new variable, and it's moving fast enough that "I'll figure it out later" isn't really an option anymore. The buyers who spend ten extra minutes asking these questions are the ones who won't be surprised later.

If you're thinking about buying or selling anywhere in the Miami Valley, especially somewhere near one of these proposed sites, I'd love to help you think it through. Reach out anytime.

Sources & Further Reading

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