Drive through McLean this fall and you can find two listings within a few miles of each other that expose the same math problem. One is a bare 0.9-acre lot in the new Knolewood subdivision, priced near $2.45 million, with nothing on it. No house, no driveway, no landscaping. The other is a fully built three-bedroom rancher from 1965, a few miles away, listed close to that same number. A buyer scrolling past both on a portal sees two prices that look comparable. They are not measuring the same thing at all.

That gap is the real story in McLean right now, and it matters more than whatever median price a portal shows you this month.

The median is measuring two different products

Ask five sources what a McLean home costs and you will get five different answers, and the spread is not a data error. It reflects a market where a handful of very large or very small sales can swing the number from one reporting window to the next.

The West McLean and McLean Hamlet rows are the tell. Those percentage swings are not the neighborhood getting three times more expensive or a third cheaper in a single stretch. They are what happens when only a handful of homes trade in a given window and one or two high-dollar teardowns or estate sales pull the median with them. In a market this small, a single $8 million closing can reshape the headline number for an entire pocket of town.

If you are comparing McLean to a neighborhood in Bethesda or Potomac where sales volume is steadier, treating the McLean median as an apples-to-apples input is the first mistake. The second mistake, and the more expensive one, is not knowing which of the two products above you are actually pricing when you look at a specific listing.

What land alone costs in McLean

Knolewood makes the land component visible in a way that most McLean transactions don't. The subdivision sits on 8700 Lewinsville Road, on 25 acres that belonged to the Jewett family for more than sixty years. An affiliate of Petroleum Marketing Group bought the parcel in October 2024 for $27 million, and the site plan calls for 24 single-family lots ranging from 0.82 to 1.2 acres, the last contiguous stretch of undeveloped land left in McLean, according to reporting from FFXnow. TTR Sotheby's International Realty and Corcoran McEnearney are handling sales, and buyers work with one of three approved builders: Artisan Builders, Galileo Signature, or Winthrop Builders.

The lots themselves, with no structure at all, are listed in the $2.4 to $2.5 million range. That number is close to a pure land price for the McLean market right now, unclouded by whatever house happens to be sitting on a given parcel elsewhere in town.

Once you have that anchor, you can look at any older McLean listing and ask a sharper question than "is this a good price." You can ask what portion of that price is land, and what portion is the structure standing on it.

Doing the subtraction

Construction costs give you the other half of the equation. Quality custom builds in McLean are running $350 to $550 per square foot this year, which puts a 5,000 to 6,000 square foot home at roughly $1.75 to $3.3 million to build, not counting the land under it. All-in budgets, land included, depend on the lot and construction costs, and a full teardown-to-occupancy timeline runs 18 to 30 months once you account for design, Fairfax County permitting, and construction itself.

Put a Knolewood-style land value next to those construction figures and you get a rough framework for reading any listing:

• Estimate rebuild cost using square footage times $350 to $550 per square foot
• Subtract that from the asking price
• Compare what's left to current raw land pricing for a similarly sized lot

When that leftover number lands close to or below what bare land is fetching, the existing house is contributing little or nothing to the price. In some cases the structure is closer to a liability than an asset, something a buyer pays to remove.

This isn't an unusual outcome in McLean's older housing stock. Renovation becomes the less rational path once the cost of updating a home approaches 70% or more of what it would cost to simply rebuild it, a threshold that shows up often in the 1960s and 1970s homes that make up a large share of the town's inventory. Aging foundations, compartmentalized floor plans, and mechanical systems built for a different era all push renovation costs toward that ceiling faster than buyers expect.

Why the condo market plays by different rules

Not every scarcity story in McLean is about dirt. A few miles away in Tysons, adjacent to the Ritz-Carlton, Tysons Corner hotel and Tysons Galleria, Renaissance Centro is building The Ritz-Carlton Residences, McLean, Tysons, a 102-unit standalone condo tower designed by FXCollaborative with interiors by MAWD. Units start around $1 million and run up to 4,500 square feet, with construction beginning in 2026 and completion targeted for late 2028, according to coverage in Patch.

That project is a useful contrast because it shows scarcity behaving differently in a vertical product. You cannot tear down a floor of a condo tower and rebuild it to capture land value. The premium buyers pay there is for the address, the brand, and a fixed number of units that will never expand. It's a different kind of ceiling than the one governing a single-family teardown lot, and worth understanding if you are weighing a McLean house against a Tysons-adjacent condo as two paths to the same zip code.

What this means if you're comparing McLean to somewhere else

If you're cross-shopping McLean against Great Falls, Potomac, or Bethesda, resist anchoring on whichever median price you saw first. Ask instead what a given listing's price is actually paying for. A dated house on a generous lot in a neighborhood where teardown activity is common may be worth more for its land position than its square footage. A recently renovated home on a constrained lot may be worth close to what the structure alone would cost to replace, with little land premium attached. Those are different investments with different risk profiles, even when the sticker price looks the same.

The clearest way to find out which one you're looking at is to walk the comparison with someone who tracks land sales, construction costs, and structure condition as three separate inputs rather than one blended number.

A few questions worth asking before you write an offer

Does a home inspection tell me if I'm looking at a teardown candidate? Not directly. An inspection reports on the current condition of the structure and its systems. It won't tell you whether renovation costs are approaching the 70% replacement-value threshold that makes rebuilding the more rational path. That comparison requires pairing inspection findings with current construction cost estimates for the area.

Is buying a home mainly for its land value a bad idea? Not inherently. Many McLean buyers do this on purpose, planning a future rebuild on a lot they like in a location they want. The risk comes from not knowing that's what you're doing and pricing the deal as if you were buying a finished, livable home.

How do I know if a specific McLean listing is priced for the house or the lot? Compare the asking price against a construction cost estimate for a home of similar square footage, then see what's left over. Weigh that residual against current raw land pricing for comparable lots in the area, such as the Knolewood listings, to gauge whether the existing structure is adding value or simply occupying space.

Reading a McLean listing this way takes more than a portal search. It takes someone who watches land sales, construction pricing, and structure condition as three separate threads and can tell you, before you write an offer, which one you're actually paying for. That's the kind of groundwork Amy Embrey and her team build into every McLean conversation. Schedule a consultation to talk through your specific situation before you compare another listing.