A developer named Wilson just finished three townhouses on a residential lot in Arlington's Bluemont neighborhood, the site of a house explosion that had left the property vacant. He didn't need the county's Missing Middle zoning to do it. The lot was already zoned for a duplex, so he bought both halves of an existing duplex property and found a way to fit three units into a 10,500 square foot footprint, each with 10 foot ceilings and a rooftop terrace. "I knew I could get three out of it," he told ARLnow, describing the layout as taking some creative design work but getting done.
What makes this worth noticing is who Wilson is. His company has been one of the central figures in Arlington's three year legal fight over Expanded Housing Options, the zoning reform everyone calls Missing Middle. Yet his newest project sidesteps that entire fight. He built under rules that were already on the books rather than wait on rules still working their way through the Virginia Supreme Court. That gap between what the county is still arguing about and what an actual builder chooses to do with a specific lot is the thing most buyers and sellers comparing Arlington to other DMV neighborhoods are missing.
The Sales Pitch Was Cheaper Housing. The Listings Say Otherwise.
When the Arlington County Board adopted EHO in 2023, the county's own study projected the reform would add somewhere between 94 and 108 new middle housing units and bring roughly 1,500 new residents to the county over a decade, according to WJLA. The theory was straightforward: more units per lot means more homes on the market, and more homes means lower prices per home.
Halls Hill, a historically Black Arlington neighborhood already zoned for duplexes ahead of the countywide EHO rollout, gave an early look at what actually happens. Arlington realtor Kathy Rehill described the pattern to Patch: "we are seeing teardowns of modest single-family homes to build these very expensive duplexes." She estimated the new duplex units were listing in the $1.4 million to $1.8 million range per unit, replacing single-family homes that had been selling closer to $800,000.
Run the arithmetic and the affordability story flips. One household paying $800,000 becomes two households paying somewhere near $1.4 million or more apiece. That's not two families splitting the cost of one lot. That's the lot getting more valuable because it can now legally hold more building, and the seller of the old house capturing most of that new value on the way out.
Why Extra Zoning Capacity Turns Into Land Price, Not Savings
Here's the mechanism. A teardown lot is worth whatever a builder can construct on it and sell for more than the cost of building. When a zoning change raises the ceiling on what can legally go up, from one unit to as many as six, it raises what a builder is willing to pay for that dirt. That premium mostly lands in the pocket of whoever sells the original house, not in the pocket of whoever buys a unit in the new building.
Arlington has a second wrinkle that makes this even more pronounced. Unlike Portland, which caps single-family homes at 2,500 square feet, Arlington places no floor-area cap on single-family construction at all, only height, setback, and lot coverage limits, according to an analysis from Greater Greater Washington. On many smaller lots, that means a brand new single-family house can be built almost as large as a legally permitted duplex or fourplex.
Compare that to what EHO actually allows: a duplex is capped at 4,800 square feet total, and a five- or six-unit building tops out at 8,000 square feet total, per the same analysis. A county study using 2019 data found the average new single-family teardown in Arlington already ran 4,750 square feet and sold for roughly $1.7 million. When a builder can put up nearly that much house as a single-family home and sell it as one expensive property instead of splitting the square footage across several smaller, cap-restricted units, the single-family teardown often pencils out better. That's a structural reason construction under EHO has lagged what the county projected, something even proponents of the policy have acknowledged.
| Building Type | Size Allowed Under Current Rules | What Actually Gets Built |
|---|---|---|
| Single-family rebuild | No floor-area cap, limited only by height, setback, and lot coverage | Averaged 4,750 sq ft and sold near $1.7 million per 2019 county data |
| Duplex under EHO | Capped at 4,800 sq ft total | Halls Hill units estimated at $1.4M to $1.8M each |
| Five- or six-unit building under EHO | Capped at 8,000 sq ft total | Smaller individual units, plus added parking and shade tree requirements |
The Site-Specific Math Buyers and Sellers Actually Need
Not every lot qualifies for redevelopment under EHO, and that's the part a zoning map alone won't tell you. The ordinance requires a minimum of four shade trees for buildings of two to four units and eight for buildings of five or six, per Arlington Magazine's reporting on the ordinance's fine print. Parking requirements scale with distance from Metro, so a lot a half mile from a station faces different math than one further out. New units must also face the street rather than a shared driveway or courtyard, a rule that works against Arlington's typical deep suburban lots that lack alley access, since courtyard style layouts that make sense on paper often can't be built under that requirement.
The county also capped total conversions at 58 lots per year across the program's first five years, spread deliberately across large, medium, and small lot sizes. Even at the peak of the ordinance being in effect, before the first court ruling paused everything, only two EHO-permitted projects had actually reached the construction phase, per Arlington Magazine's reporting on the fallout. Dozens more had permits filed. Very few had broken ground.
If you're weighing an Arlington listing next to a comparable home elsewhere in the DMV, or trying to figure out whether your own lot carries redevelopment upside, the answer depends on lot width, lot depth, distance to transit, and whether the street can physically support the parking configuration EHO demands. It does not depend on whether the property sits inside the zoning boundary. Plenty of eligible lots will never clear those practical hurdles.
The Legal Clock Nobody Closing on a Home Can Ignore
The EHO ordinance has been in legal limbo since the month it passed. The County Board adopted it in March 2023 and it took effect that July. Homeowners sued almost immediately. A 2024 circuit court ruling voided the ordinance from its inception, pausing roughly 45 multifamily projects that had permits in hand. The Virginia Court of Appeals reversed that decision in June 2025 on a procedural technicality about a developer's right to be part of the case, which put EHO permits back into active processing, but that ruling never addressed whether the ordinance is actually valid.
On May 19, 2026, the Virginia Supreme Court agreed to hear the plaintiffs' appeal of that procedural ruling, according to Arlington County's own posted update. The court made clear it is reviewing the procedural question only, not the underlying merits of whether EHO is lawful. As of June 2026, the opposition group Neighbors for Neighborhoods was telling reporters it expected the case to land back in trial court within three to six months, per YIMBY Law. Oral hearings at the Virginia Supreme Court are now set for this fall, according to ARLnow's reporting from earlier this month, which means the case is moving on roughly the timeline the opposition predicted.
So as of today, permits under EHO are being processed again, but the ordinance has now been challenged on procedure twice without ever being tested on its actual substance. Wilson, the developer who built the Bluemont townhouses, has stepped back from actively arguing the underlying case himself, citing cost and the outcome of other litigation, even though he still says he supports the policy. He built his newest project on zoning that didn't need EHO to survive at all. When someone whose business model depends on missing middle construction chooses to build around the litigation rather than wait on it, that's a signal worth weighing before you price a lot's redevelopment potential into an offer.
What This Means If You're Sizing Up Arlington Against Other Submarkets
Segment performance in Arlington has been uneven heading into 2026, and the zoning uncertainty helps explain why. Single-family homes have been projected to lead appreciation for the year with inventory climbing well above 2025 levels, a segment whose value doesn't depend on how a three-year court fight eventually resolves. Condos, coming off a sharp 2025 decline, have been expected to post only modest gains in 2026. Townhomes, after sitting nearly flat the year before, were projected for similarly modest growth. Back in June 2025, as the appeals court fight was making headlines, the median single-family home in the county sat at $1.13 million according to Zillow data cited by WJLA, underscoring how much of the county's price growth has concentrated in the segment least tied to zoning risk.
The practical question for anyone comparing an Arlington listing to a home in another DMV neighborhood isn't whether missing middle zoning exists here. It's what portion of the asking price reflects the home as it sits today, and what portion reflects a bet on how the Virginia Supreme Court rules on a case that hasn't even reached trial on the merits.
Does missing middle zoning automatically lower nearby home values? No consistent evidence supports that. Effects are lot-specific and gradual, tied to whether a given property can realistically clear the county's lot size, parking, and tree requirements, not to whether it sits somewhere on the zoning map.
Can I redevelop my own single-family lot under EHO right now? Only if it clears minimum lot size, parking, and street-orientation rules, and only within the county's capped number of annual conversions. Check the specifics of your lot before assuming any zoning-based upside, and factor in that the ordinance's legal footing is still being tested.
Arlington's zoning fight is far from settled, and that uncertainty is exactly why a lot-by-lot read matters more than a headline about what's legal on paper. If you're weighing a purchase or a sale anywhere in Arlington, Fairfax, Alexandria, or the wider DMV and want someone who tracks these fights as closely as the comps, Yolanda Burgess and the Platinum Partners Realty team are ready to walk through what a specific address is actually worth. Schedule a free consultation to get a clear read before you write an offer or set a list price.
