Why Ashburn's Property Tax Bill Runs Lower, And Why That Might Not Last

Homeowners in Ashburn's Regency neighborhood didn't get a knock on the door about a leaky roof or a noisy dog. They got an offer to sell their entire subdivision, all 143 homes off Waxpool Road, for roughly $4.4 million an acre. The buyer wasn't another family. It was a data center developer, and the land those 143 houses sit on happens to fall inside the corridor now known around the world as Data Center Alley.

That offer, reported by Data Center Dynamics and covered by NBC4 Washington and InsideNoVa earlier this year, is an extreme version of something every Ashburn buyer should understand before they compare a closing disclosure line by line: the same industry surrounding this corner of Loudoun County is also the reason property owners here pay less in real estate tax than their counterparts in Fairfax or Arlington. It is not a coincidence. It is a financing structure, and like any financing structure, it comes with terms that can change.

The Rate Everyone Notices, and Why

Loudoun County's real property tax rate for tax year 2026 is $0.805 per $100 of assessed value, unchanged from the prior year and confirmed in the county's own adopted budget. Compare that to Fairfax County's base rate of $1.1225 per $100 for fiscal year 2026, or Arlington County's rate of roughly $1.033 per $100. On a $700,000 assessed home, that difference is not trivial.

That gap runs from roughly $1,600 to more than $2,200 a year on a comparably assessed home, and it's the difference buyers relocating from Arlington or Fairfax tend to notice first. What they often don't ask is where it comes from.

One Industry, Close to Forty Percent of the Budget

Loudoun County's own FY2026 budget materials put the answer plainly: data centers generate close to 38 percent of the county's General Fund revenue. That includes commercial property tax on the buildings, real estate tax on the land, and personal property tax on the servers and equipment inside. It is why Loudoun can hold one of the lowest real property tax rates in the region while still funding schools, roads, and county services that a smaller commercial tax base couldn't support on its own.

The county is aware this creates a dependency, not just a windfall. In 2023, the Board of Supervisors created a Revenue Stabilization Fund specifically to cushion the budget against swings in data center revenue collection. As of the FY2026 adopted budget, that fund sits at $39.7 million and is now fully funded. A county doesn't build a $39.7 million buffer against a revenue source it considers permanently stable.

The Legislature Is Deciding This Right Now

The bigger uncertainty sits one level up, in Richmond. Virginia's data center sales tax exemption, the tax break that makes building here so attractive to developers in the first place, cost the state an estimated $1.6 billion in forgone revenue in fiscal year 2025 alone. That number has made the exemption a direct target in the 2026 General Assembly session.

The Senate's budget proposal would accelerate the exemption's sunset from 2035 to January 1, 2027. The House version would preserve it through 2035 but attach new clean energy requirements. When lawmakers reconvened for a special budget session on April 23, 2026, they left after a few hours without an agreement, with the two chambers' proposals still separated by more than a billion dollars. Of the 61 data center bills considered this session, 15 reached the governor's desk and 46 were carried over to 2027. The exemption question itself was not among the resolved fifteen.

None of this changes what a buyer pays this year. It does mean the fiscal engine behind Ashburn's lower tax rate is being actively debated by the people who control it, with a possible effective date less than a year from now if the Senate's version prevails.

Growth Is Getting Harder to Approve, Not Easier

There's a second constraint working in the opposite direction from the tax exemption fight. On March 18, 2025, the Loudoun County Board of Supervisors voted to eliminate by-right approval for new data centers countywide. Before that vote, a developer with the right zoning could build without discretionary review. Now every new data center application requires a special exception, meaning a public hearing before the Planning Commission and another before the Board of Supervisors, a process that can stretch from nine to eighteen months for a contested project.

That doesn't mean the pipeline is drying up. More than 100 additional data center projects are reportedly still in the works across Loudoun, according to Virginia Business reporting cited by Northern Virginia Magazine. It does mean each new project now faces friction that simply didn't exist two years ago, and that friction shows up at the neighborhood level, not just in Richmond.

Ashburn Village is a live example. A data center proposal from developer B.F. Saul along Route 7 drew more than 200 residents to a community meeting hosted by the Ashburn Village HOA this year, with concerns centered on noise, water consumption, and rising electricity costs. The application was still working through county zoning review as of early September, with no Planning Commission hearing date yet set.

Mital Gandhi, the former Regency HOA president who helped bring the buyout offer to his neighbors, put the tension plainly to WUSA9 this summer. Standing by his own backyard pool, flanked by data centers on two sides, he described hearing "that hum" of the facilities and said of the land itself: "These concrete buildings aren't going anywhere." His read on the situation was less about defeat than about facing what the corridor has already become.

What This Means If You're Comparing Neighborhoods

For a buyer weighing Ashburn against Arlington, McLean, or inner Fairfax County on total cost of ownership, three things follow from all of this.

First, the rate is real and current. At $0.805 per $100, Loudoun's tax bill on a comparable home runs meaningfully lower than Fairfax's or Arlington's today, and that has held steady through the FY2026 budget cycle.

Second, that rate is tied to a revenue source facing an active political fight. If the state sales tax exemption sunsets on the accelerated Senate timeline, the pressure on Loudoun's budget, and potentially its future tax rate decisions, changes in ways that haven't been resolved yet.

Third, proximity within Ashburn matters more than the county average suggests. A subdivision boxed in by existing data centers, like Regency, faces a completely different set of considerations than a neighborhood a mile away with no adjacent industrial development. Buyers should ask specifically about a property's distance from existing and proposed data center sites, not just accept the countywide tax comparison as the whole story.

A Couple of Questions Worth Asking Before You Write an Offer

Will Loudoun's tax rate stay this low? Nobody can say for certain. The rate itself is set annually by the Board of Supervisors and has held flat for TY2026. The bigger variable is the state-level sales tax exemption debate playing out in Richmond, which could reshape county revenue projections depending on how the General Assembly resolves it in 2027.

Does living near a data center affect resale value? It depends heavily on specifics: direct sightlines to a building or substation, proximity to active construction, and how much tree cover or distance separates a home from the nearest facility all shape buyer reaction differently than county-wide averages do. This is worth walking through property by property rather than assuming a single answer applies across all of Ashburn.

Ashburn's tax advantage is one of the clearer financial arguments for buying here right now, but it's an argument built on a specific and currently contested foundation. Understanding that foundation, not just the number it produces, is what separates a buyer who's done the homework from one who's only seen the sticker price.

If you're comparing Ashburn to other parts of Northern Virginia and want a clear-eyed read on what a specific property's tax picture, location, and long-term value actually look like, Jo & Co is glad to walk through it with you. Let's Connect.