Vicky Hu spent 20 years paying down a mortgage in her Loudoun Valley Estates home with a plan to retire there. In June 2026, the Virginia State Corporation Commission approved a transmission route that runs directly through her backyard, clearing Dominion Energy to build monopoles up to 185 feet tall as part of a project connecting two substations that serve Loudoun's data center corridor. She has no comparable payout coming. Her only recourse is an appeal that, under Virginia law, skips any intermediate court and goes straight to the state's Supreme Court.
A few miles away, homeowners in Ashburn's Regency subdivision have spent 2026 fielding a different kind of pressure: a reported offer of roughly $4.4 million per acre, or close to $576 million total, to sell their entire 143-home neighborhood off Waxpool Road to a data center developer. That works out to somewhere around 35 times the median land price elsewhere in the county. The catch is that every one of the 143 homeowners has to agree before the deal can move, and as of this spring it still hadn't happened.
Same industry. Same county. Two outcomes that sit at opposite ends of what a data center boom can do to a residential street. If you're comparing Ashburn to other Northern Virginia suburbs right now, the number you saw on a listing portal tells you almost nothing about which of these outcomes your future home is closer to.
The County Number and the Street Number Are Different Numbers
Loudoun County's own assessment data explains why the aggregate picture looks so favorable. Data center land now makes up 26 percent of the county's real property tax base, and countywide property values totaled $185.7 billion as of the assessment presented to the Board of Supervisors in February 2026, a 12.4 percent increase over the prior year. Commercial data center land alone sold for an average of $3.76 million per acre in that same reporting period, up $1.4 million from the year before.
That revenue does something specific: it funds services and infrastructure without raising residential tax rates as fast as they'd otherwise need to rise. County budget data shows data centers made up roughly 73 percent of the commercial tax portfolio in tax year 2025, and the personal property tax windfall from that equipment, $133 million of $150 million in new revenue in one year, gave the county room to cut rates while still increasing overall funding.
That's the mechanism behind a finding that surprises a lot of newcomers to this market: a regional study out of George Mason University found homes located closer to data centers tended to sell for higher prices, not lower, across single-family homes, townhomes, and condos alike. The explanation isn't that people love living next to server farms. It's that the tax subsidy is real, it's countywide, and it shows up in home values before most buyers ever notice where the nearest facility sits.
Why That Doesn't Settle the Question for Your Specific Parcel
Here's the part the county-wide number hides. The subsidy is diffuse. It spreads across every homeowner in Loudoun. The costs and the windfalls are not diffuse at all. They land on specific parcels, specific HOAs, specific streets, and they land unevenly.
| Location | What's happening | Who benefits |
|---|---|---|
| Regency (off Waxpool Rd) | Reported $4.4M/acre offer for a 130-acre assemblage, contingent on all 143 owners agreeing | Homeowners, if the deal closes and rezoning is approved |
| Loudoun Valley Estates | SCC-approved Golden-Mars transmission route puts 182 homes within 500 feet of new 185-foot monopoles | Regional grid reliability, not the affected homeowners directly |
| Typical Ashburn buyer today | No direct land offer or transmission impact, but home value benefits from countywide tax base effect | Every county resident, indirectly, through funded infrastructure and rate relief |
The Regency outcome depends on unanimous consent from all 143 households and still requires Loudoun County to approve rezoning, a step the county has not guaranteed. The Loudoun Valley Estates outcome required no consent at all. Dominion proposed six possible routes for the Golden-Mars project, and the one the SCC ultimately approved cuts through residential backyards rather than the alternative route the commission itself had identified as causing the least overall impact.
If you're touring homes in Ashburn this fall, the honest question isn't "do data centers help or hurt home values here." Both things are true depending on which parcel you're standing on.
What the Portal Median Actually Shows Right Now
As of March 2026, Redfin data put Loudoun County's median sale price at $751,000, down 7.4 percent from a year earlier, with homes taking an average of 29 days to sell compared to 24 days the year before. Price per square foot moved the opposite direction, up 4.2 percent over the same period.
That combination, a falling median alongside a rising price per square foot, usually means the mix of what's selling has shifted rather than values collapsing outright. It's consistent with a market where the countywide tax base effect keeps well-positioned homes firm on a price-per-square-foot basis while overall transaction volume and mix soften. None of that shows up if you only glance at a single median number on a portal. It shows up when you ask what specifically sold, and where.
The Zoning Layer That Predates Every Listing
Loudoun County ended by-right approval for new data center applications in areas where that had previously been an administrative rubber stamp, moving those projects into a legislative review process in front of the Planning Commission and Board of Supervisors instead. Part of that policy shift included a 500-foot buffer standard from residential property, described at the time as a compromise between developers already in the pipeline and supervisors pushing for a full review.
That change matters for anyone evaluating a specific address, because it means the zoning status of the parcel next door, and the parcel behind that one, can change the calculus on a home you're considering. The Golden-Mars transmission project didn't appear on any home's disclosure form before it broke ground. It moved through a Virginia State Corporation Commission docket, case number PUR-2025-00056, for roughly a year before the route was finalized. A buyer who checked county GIS records and the SCC's public case docket during their search would have seen it coming. A buyer who only checked the listing description would not have.
What Virginia Actually Requires Sellers to Tell You
Here's the detail that surprises most buyers moving from states with heavier disclosure requirements. Virginia's Residential Property Disclosure Act does not include a category for proximity to data centers, transmission lines, or industrial noise. The state's disclosure form requires sellers to affirmatively address a short, specific list: proximity to military air and ground installations, pending building code or zoning violations, dam break inundation zones, and a handful of other named items. Beyond that list, Virginia lets sellers check a box saying they make no representations about the property's condition at all, consistent with the state's general caveat emptor approach to residential sales.
That means a home two streets from a pending rezoning application or a transmission corridor carries no legal obligation for the seller to mention it, as long as the seller doesn't actively misrepresent something they know. The burden shifts to the buyer to check the county's parcel database, the zoning map, and, where relevant, the SCC's public case filings before writing an offer. That's not a Loudoun-specific quirk. It's how Virginia disclosure law works statewide, and it happens to matter more in a county where a rezoning decision can move a specific home's context more than any renovation could.
What This Means If You're Comparing Ashburn to Somewhere Else
The county's aggregate data supports a genuinely optimistic case for Ashburn: a tax base subsidized by an industry that isn't going anywhere soon, and regional research suggesting proximity alone doesn't drag values down. That case is real and worth taking seriously.
It just isn't the whole case for any one address. The same industry that funds the tax relief also generates the land assemblages, the transmission corridors, and the rezoning applications that reshape specific blocks with very little warning to the people living on them. Evaluating a home here means treating the county median as background context, not as the answer, and doing the parcel-level homework that Virginia's disclosure law doesn't require the seller to do for you.
Frequently Asked Questions
Does living near a data center hurt home values in Ashburn? Regional research from George Mason University found homes closer to data centers sold for higher prices, not lower, across property types. That finding reflects the county-wide tax base effect. It doesn't address specific situations like an active land assemblage or a newly sited transmission line, which can affect an individual property very differently than the county average.
Is Virginia required to tell me if a data center or transmission project is planned near a home I'm buying? No. Virginia's disclosure law lists specific required disclosures, such as military installation proximity and dam break zones, but data centers and transmission projects aren't on that list. Sellers can decline to make any representation about the property's surroundings, which puts the research burden on the buyer.
How do I check if a nearby parcel has a pending data center application? Loudoun County's zoning applications and Board of Supervisors agendas are public, as are Virginia State Corporation Commission case filings for transmission projects. Checking both before making an offer is the closest equivalent to the disclosure protection buyers get automatically in some other states.
Ashburn's data center economy is genuinely more complicated than a single median price can convey, and getting the parcel-level picture right before you write an offer is exactly the kind of groundwork that shouldn't be left to a portal listing. If you're weighing a move here or trying to understand what a specific Ashburn address is really worth given what's planned around it, Daniel Gwak can walk through the zoning and transmission context on any property you're considering, alongside a full home valuation.
