A buyer cross-shopping Highland Park and Preston Hollow pulls up both medians online and Preston Hollow looks like the value play, meaningfully lower on paper. Then their agent takes them to see a house on Park Lane, and the price has nothing in common with the number they saw the night before. Which figure is the real one?
Both are real. They are measuring two different populations of homes. One counts everything that gets entered into the regional MLS and pushed out to public search sites. The other counts what actually changes hands in the neighborhood, whether or not the public ever saw it listed. In most Dallas neighborhoods those two counts are close enough to ignore. In Preston Hollow, they are not, and the gap tells you something specific about how this particular market works.
Two Medians, One Neighborhood
As of July 2026, public listing data put Preston Hollow's median home price at $1,297,000, up 6 percent year over year, with an average sale price closer to $1,784,230. That figure comes from the roughly 172 single-family homes actively marketed at any given time, spanning a published range from $429,000 up to $64,000,000, with typical time on market running about 60 days against a national average near 56.
A separate review of the neighborhood's luxury estate market put the median closer to $1.93 million as of early 2026, built on a different breakdown entirely: three distinct tiers, each with its own price band and its own streets.
Tier | Lot size | Price range | Where it concentrates |
|---|---|---|---|
Standard | Sub-acre | $1M to $3M | Bulk of neighborhood transactions |
Estate-tier | 1 to 3 acres | $3M to $10M | Bulk of luxury activity |
Trophy | 3+ acres | $10M to $50M+ | Strait Lane, Park Lane, Walnut Hill Lane, Volk Estates, Old Preston Hollow |
The standard tier is what dominates public search results, which is exactly why the portal median lands closer to $1.3 million than $1.9 million. It is not wrong. It is describing the middle of what gets fully marketed, not the top of what actually sells.
Where the Top of the Market Goes
Strait Lane sits at the far end of that trophy tier, sometimes called Billionaire's Row, with estates priced from $20 million into nine figures. The street has historically been home to former US presidents, Fortune 100 CEOs, professional athletes, and major Dallas philanthropists. Public listings there are rare enough to be noteworthy when they appear at all, because Strait Lane transactions almost always trade off-market through private networks.
Three things explain why. Lot size and setback create genuine privacy from the street, which is part of what buyers at this level are paying for in the first place. Ownership tends to be generational, with homes held by the same families for decades and sold, when they finally do sell, through long-established broker relationships rather than open listings. And the buyers and sellers transacting at this tier expect discretion as a baseline condition of doing business, which means minimal public marketing and a sale that may never touch an MLS search at all.
None of that is unusual behavior for the address. It is the rational choice for a seller who has more to lose from public exposure than to gain from it, and it means the neighborhood's highest-value sales are structurally underrepresented in any statistic built from public listing data.
The Rule That Decides What You See Online
The reason this works at all comes down to a specific piece of MLS policy. North Texas Real Estate Information Systems, the regional MLS covering Dallas, adopted the National Association of REALTORS' Clear Cooperation Policy effective May 1, 2020. The rule requires listing brokers to submit a property to the MLS within one business day of marketing it to the public, whether that marketing is a yard sign, a social post, or an email blast.
What counts as "public marketing" is where the real flexibility lives. Effective October 8, 2025, NTREIS updated its procedures around Coming Soon status. A listing can now sit in that status for up to 30 days, during which it appears in MLS searches and agent-to-client emails but does not syndicate to third-party sites like Zillow or Realtor.com. As of that same update, sellers can also choose whether to allow showings while a property sits in that status, and if it has not sold by day 30, it converts automatically to Active the next day.
A seller who never signs a public marketing agreement at all, who moves the property purely through referral inside a broker's private network, is not violating Clear Cooperation, because the rule only triggers once a property is marketed to the public. That is the mechanism behind the invisible top of the Preston Hollow market. It is not a loophole. It is how the rule was written to work.
What the Gap Means If You're Comparing Neighborhoods
If you are shopping Preston Hollow against Highland Park or University Park, where luxury listings start around $11.4 million, comparing the two medians directly will mislead you in both directions. Preston Hollow's public median is pulled toward its standard, sub-acre tier because that is what makes up the bulk of publicly marketed transactions. Its estate and trophy tiers are underrepresented in that number, sometimes almost entirely absent from it.
For a buyer whose interest is specifically in the estate or trophy tier, the practical consequence is that a standard portal search, filtered by price and square footage, will show you a fraction of what actually exists on the ground in a given month. The properties you most want to see may never generate a listing photo you can scroll past.
For a land or teardown-minded buyer, the same gap applies to lots. Some of the most desirable estate parcels change hands through private referral before they are ever formally listed, which means relying on public inventory alone will systematically undercount your real options in that price range.
What the Gap Means If You're Selling at the Top
If your property fits the estate or trophy tier, the decision is not whether to follow the rule but which legal path to take within it. A Coming Soon listing gives you 30 days of controlled exposure inside the broker network before the clock forces a decision. An office exclusive, preserved as an option under NAR's national Multiple Listing Options for Sellers framework introduced in March 2025, keeps a property inside a single brokerage's client relationships without ever entering the MLS at all. Full public marketing from day one maximizes buyer exposure but also means your list price, your photos, and your negotiation position are visible to everyone, indefinitely, the moment they are published.
None of these is automatically the right choice. They are tradeoffs between exposure and control, and the right one depends on what the property is, who is likely to buy it, and how much privacy actually matters to the sale.
A Few Questions Worth Answering Directly
Does an off-market sale still get recorded like any other sale? Yes. Skipping public MLS marketing does not exempt a transaction from deed recording or county filing. It only changes who sees the listing before it closes.
Can any buyer get access to off-market Preston Hollow inventory? Only through an agent with real standing inside the private networks where these properties actually circulate. A standard portal search will not surface most of them, regardless of how the filters are set.
How long can a listing legally stay in Coming Soon status before it has to go public? Under the current NTREIS rule adopted in October 2025, 30 days. After that, it converts automatically to Active status.
If you are trying to make sense of what a number like this actually means for your search or your sale in Preston Hollow, Holly Davis & Amy Farris work both sides of this market daily, the public data and the private one, across Preston Hollow, the Park Cities, and the estate and land-driven corners of Dallas real estate. Reach out and we will walk through what your specific price range or property actually looks like once you account for what the portals leave out.
