At an open house in North Highlands last spring, a buyer asked her agent about the stakes and silt fencing two doors down. The answer took longer than she expected. The lot was approved for a duplex under Arlington's Expanded Housing Option, the zoning change most people call Missing Middle. But the ordinance itself had been voided by a circuit court judge the previous fall, reinstated on a technicality months later, and was, as of that week, sitting in front of the Virginia Supreme Court on a question nobody outside a courtroom would call simple. Whether that duplex ever got finished, whether its presence would change what her own offer needed to look like, depended on a ruling nobody could yet predict.
That is not a hypothetical. It is the actual diligence question facing anyone shopping for an older single-family home on a standard Arlington lot right now, and it rarely shows up in the headline number.
The headline number, as of July 2026, put the median Arlington home sale at $835,000, up 7.7 percent year over year, moving in about 34 days. Read on its own, that sounds like a single market moving in one direction. It is not. Arlington in 2026 is running at least three markets at once, and the gap between them is the actual story for anyone comparing this county to its neighbors or trying to figure out what their budget will actually buy.
Three Markets Wearing One Zip Code
The Northern Virginia Association of Realtors and the Center for Regional Analysis at George Mason University released their 2026 forecast on December 29, 2025, and it broke the county apart by property type rather than averaging it into one line. Single-family detached homes were projected to rise 3.8 percent for the year, with inventory expected to climb nearly 28 percent. Townhouses were forecast at a more modest 1.9 percent. Condominiums were expected to recover only 2.1 percent, a fragile bounce after prices in that segment fell an estimated 7.4 percent over 2025, weighed down in part by rising condo association fees that have climbed with three years of general inflation.
Arlington's 3.8 percent single-family projection was strong, but it was not the strongest in the region. Alexandria was forecast to grow faster at 4.2 percent, the only one of six jurisdictions in the study to outpace Arlington. Loudoun County came in at 3.3 percent, Fairfax at 1.9 percent. Prince William and Stafford counties were projected to see outright declines.
| Jurisdiction | 2026 Projected Single-Family Price Growth |
|---|---|
| Alexandria | +4.2% |
| Arlington | +3.8% |
| Loudoun County | +3.3% |
| Fairfax County | +1.9% |
| Prince William County | -0.2% |
| Stafford County | -4.6% |
If you are comparing Arlington to Alexandria purely on single-family appreciation, Alexandria currently has the edge. If you are comparing Arlington's condo market to its own single-family market, you are comparing two segments moving in almost opposite directions in the same county at the same time. Neither fact survives contact with a single median price.
The Zoning Bet Behind the Split
Underneath the property-type split sits a second, stranger one, and it traces back to a specific policy decision. In March 2023, the Arlington County Board voted unanimously to adopt the Expanded Housing Option, allowing duplexes, triplexes, and buildings of up to six units by right on lots that had been zoned exclusively for detached single-family homes. The stated goal was straightforward: more housing types would mean more price points, and more price points would help the buyers currently shut out of Arlington's market for modest, entry-level homes.
The legal fight over that ordinance has been almost as consequential as the ordinance itself. Nine homeowners sued, arguing the county failed to properly study the impact on things like sewage capacity and tree canopy. In September 2024, a circuit court judge agreed on four of six counts and voided the ordinance from its inception, immediately nullifying roughly 45 approved permits. In June 2025, an appeals court reversed that ruling, but only on a procedural technicality: a developer holding EHO permits should have been named as a party to the original suit. The merits of the ordinance itself have still never been fully decided.
On May 19, 2026, the Virginia Supreme Court agreed to take up that procedural question, though it explicitly declined to weigh in on whether EHO is lawful. Jay Hamilton, a spokesperson for the opposition group Neighbors for Neighborhoods, has said he expects the underlying case could go to trial within three to six months of that decision. As of this writing, that trial has not happened, and the ordinance remains in a state the county's own permitting page describes carefully as still in effect but still under appeal.
"Zoning affects land prices. Simply put, land that is zoned for more density is more expensive, much more expensive."
That comment came from Arlington resident Christine Brittle at a 2023 county board meeting, well before any of this litigation played out. Three years later, the sales data is starting to test whether she was right.
What a Six-Plex Actually Costs
The clearest test case sits at 3802 14th Street North, an 11-minute walk from the Virginia Square Metro station. The century-old house that stood there, with radiator heat and a bedroom you had to walk through to reach the stairs, sold for $913,000 in 2022 and was last assessed at $954,000 in 2024. As of last year, it was under construction as a six-unit building, with individual homes ranging from 1,382 to 1,562 square feet.
That is genuinely more housing on one lot than existed before, and the county's own one-year EHO report found the average approved unit runs about 1,646 square feet, a meaningfully smaller footprint than the 5,259-square-foot average for the single-family homes permitted during the same period. The product mix is changing. What has not obviously changed yet is the price floor.
One of the small number of completed EHO projects to actually reach the market is a duplex in North Highlands. Its two halves sold separately: one for $1,615,000 in December 2025, the other for $1,610,000 in March 2026. Down the block from the 14th Street six-plex, a single-family teardown built in 2011 sold in 2024 for $1.8 million, and as of last year, the average newly built single-family home in Arlington was selling for $2.4 million. The new duplex units are meaningfully cheaper than a brand-new detached house. They are nowhere near cheaper than the $913,000 rambler they were designed to replace.
What This Means If You're Buying Under $1 Million
For a buyer whose budget tops out somewhere near $900,000 to $1 million, the practical effect of all this is not that Missing Middle has failed. It is that the pool of homes in that price range is shrinking for a specific, mechanical reason: an aging single-family house on a standard lot is now worth more to a builder as a teardown site than it is to a family as a starter home, and the buyers you are competing against for that same house increasingly include developers, not just other households.
That changes how due diligence should work on any older single-family listing in Arlington right now.
- Ask whether the property or its immediate neighbors have an EHO application pending or approved. Arlington County maintains a public permit tracker updated weekly.
- If a project nearby is under construction, ask specifically whether it has already closed out its legal review or is still tied up in the pending litigation, since financing and resale value can behave differently depending on that answer.
- If you are the one considering a teardown purchase, understand that the zoning attached to a lot right now can still change with the next court ruling, and that uncertainty is a real cost even if it never shows up on a listing sheet.
None of that is legal advice, and anyone weighing a purchase near a contested EHO lot should confirm current status directly with the county before writing an offer. But it is the kind of question a median price will never raise for you, and it is exactly the kind of question worth asking before you fall in love with a house two doors down from a construction fence.
A Few Questions Worth Asking Before You Offer
Does Missing Middle zoning apply to my street? Roughly three-quarters of Arlington's residential land was zoned exclusively for single-family homes before EHO passed, so the honest answer for most established neighborhoods is yes, it could, though actual unit count depends on lot size and other zoning criteria that not every lot meets.
Will a new duplex or six-plex next door hurt my home's value? There is no evidence yet of an across-the-board decline tied to EHO construction. Impacts so far appear to be specific to location and lot characteristics rather than universal, and the sample of completed projects remains small.
How do I check whether a nearby lot has an active permit? Arlington County's EHO Permit Tracker is public and updated weekly, and it is worth a look before you get attached to any older single-family listing in the county.
The county's zoning bet may still deliver on its original promise over time. Right now, the data says something more specific: prices are splitting by property type, the legal fight is far from over, and the first completed Missing Middle homes are selling closer to luxury duplex territory than starter-home territory. Anyone comparing Arlington to Alexandria or Fairfax, or comparing a rambler to a brand-new build within Arlington itself, deserves to see that split before they make an offer, not after.
If you are trying to figure out what any of this means for a specific address, or for your own timeline to buy or sell in Arlington, Brittanie DeChino can walk through the current zoning status, comparable sales, and what your budget actually buys block by block. Get Your Home Value to start that conversation with real numbers instead of a single average.
